zubeyde aslankeser | Selcuk University (Selçuk Üniversitesi) (original) (raw)

Papers by zubeyde aslankeser

Research paper thumbnail of THE EFFECTS OF SPRINT INTERVAL TRAINING AND DETRAINING ON AEROBIC FITNESS IN YOUNG ADULTS OS EFEITOS DO TREINO INTERVALADO DE SPRINT E DO DESTREINO NA APTIDÃO AERÓBICA DE JOVENS ADULTOS

https://doi.org/10.15517/pensarmov.v22i1.58582, 2024

Sprint interval training (SIT) has been known to improve aerobic performance as well as health an... more Sprint interval training (SIT) has been known to improve aerobic performance as well as health and fitness markers in non-athletic population. However, there's not enough information about performance when SIT is stopped. The aim of this study was to investigate the effect of SIT on aerobic capacity after training and detraining process. The general design of the study was classified as before SIT, training period, after SIT and detraining period measurements. The subjects (n=26) completed baseline measurements 20-m shuttle run test and then were randomized as training and control groups. The control group continued their daily routine and the training group run SIT for 4 weeks. The 20-m shuttle run test was applied before, after training, and 4 th and 8 th detraining weeks. After the training period, aerobic performance increased in the training group (p<0.05). Also, aerobic performance increases were maintained for the 4 th weeks of detraining (p<0.05). But the performance increments disappeared in the 8 th detraining week (p>0.05). Taking a break from the exercise program for more than 4 weeks in healthy young individuals may cause the positive effects on maximal oxygen uptake (VO 2max) of SIT to disappear. SIT participants should not take a break from exercise for more than 4 weeks to maintain aerobic gain.

Research paper thumbnail of 11-14 Yaş Grubu Tenisçilerin Bilateral ve Unilateral Diz Kuvvet Profilinin Belirlenmesi

Kuvvet teniste onemli performans kriterlerinden birisidir. Extremiteler arasi bilateral ve agonis... more Kuvvet teniste onemli performans kriterlerinden birisidir. Extremiteler arasi bilateral ve agonist-antagonist arasi unilateral kuvvet asimetrisi yaralanma risklerini artirmaktadir. Literaturde tenis bransinda omuz eklemine ait kuvvet arastirmalari oldugu halde diz eklemine ait kuvvet degerlerini ve asimetrisini inceleyen kisitli arastirma vardir. Bu arastirmanin amaci tenisci cocuklarda diz extensiyon fleksiyon kas kuvvetinde asimetri olup olmadigini degerlendirmektir. Calismaya yas ortalamasi 12,8± 1,9 olan 5 kiz ve 3 erkek sporcu katilmistir. Tanimlayici olcumlerin (vucut kitle indeksi, vucut yag yuzdesi, VO2max, 20 m sprint performansi) yapilmasinin ardindan izokinetik dinamometre ile 240-180-120-600 sn-1 hizlarda baskin olan ve olmayan diz ekstensiyon fleksiyon kas kuvveti olculmustur. En yuksek kuvvetin kaydedildigi tekrar degerlendirmeye alinmistir. H/Q oranlarinin hesaplanmasinda her acisal hizda en yuksek kuvvetin olculdugu fleksiyon ve ekstensiyon degerleri oranlanmistir. Sonuclarin karsilastirilmasi bagimsiz gruplarda t testi ile yapilmis ve sonuclar ortalama± SS olarak verilmistir. p<0,05 istatiksel olarak anlamli kabul edilmistir. Dominant ve non-dominant tarafa ait kuvvet degerlerinde ve H/Q oranlarinda istatistiksel olarak anlamli farklilik tespit edilmemistir. Sonuclar 11-14 yas arasi tenisci cocuklarda diz extensiyon fleksiyon kuvvet asimetrisi olmadigini ve kuvvet degerlerinin simetrik oldugunu gostermektedir.

Research paper thumbnail of Antrenmanli Ve Antrenmansiz Genç Yeti̇şki̇nlerde Egzersi̇z Sirasinda Substrat Oksi̇dasyon Hizi

Beden Egitimi ve Spor Bilimleri Dergisi, Apr 12, 2017

The aim of the present study is to examine the differences in maximal fat oxidation rate during e... more The aim of the present study is to examine the differences in maximal fat oxidation rate during exercise between trained and untrained young adult men. 50 healthy, trained (age= 20.75±0.31 years, BMI= 21.75±0.34 kg/m 2 , n= 24) and untrained (age= 21.71±0.48 years, BMI= 22.19±0.41 kg/m 2 , n= 26) young men volunteered to participate in this study. After overnight fast, subjects tested on a Monark cycle ergometer and started pedaling at an external power output of 60 W. Subjects' pedaling cadence was kept at 60 revolutions/min (rpm). Every 3.5 min, the power output was increased by 35 W until exhaustion. Maximal oxygen uptake and maximal fat oxidation rate were determined with indirect calorimetry by using an incremental exercise test on cycle. An unpaired Student's t-test was used to determine the differences between the groups. Oxygen uptake, respiratory exchange ratio, heart rate, relative contribution of fat and carbohydrate to energy expenditure at exercise intensity that elicits maximal fat oxidation (Fatmax) were significantly different between trained and untrained subjects (p<0.05). Maximal fat oxidation rate was significantly higher in trained group than untrained group (p<0.05). On the other hand, carbohydrate oxidation rate and percent of VO2max at Fatmax were similar (p>0.05). The study results suggest that the trained individuals also have higher maximal oxygen uptake and fat oxidation rate than untrained young adults. Also, it can be said that the relative contribution of fat and carbohydrate to energy expenditure at Fatmax were affected training status.

Research paper thumbnail of Evaluation of Bilateral Asymmetry of Concentric and Isometric Knee Extension- Flexion Strength in Male Fencers

DergiPark (Istanbul University), Aug 1, 2016

Fencing is an Olympic combat sport in which two athletes fight through their weapons such as epee... more Fencing is an Olympic combat sport in which two athletes fight through their weapons such as epee, foil and sabre. During the competition, athletes hold the weapon with their dominant arm and stay in defense or attack positions by stepping forward, behind or right/left with dominant leg in front. Depending upon chronic applications structural and/or functional asymmetries between dominant and non-dominant extremities are shown with cross-sectional area and performance measurements. The aim of this study was to compare dominant and non-dominant knee flexion-extension strength values of epee fencers. The study was conducted on nine athletes whose age average was 18,1± 1,4 years. Strength measurements of dominant and non-dominant knees were carried out by using concentric and isometric modules of isokinetic dynamometers (Cybex II). Angular velocities were determined as 240-180-120-60 ⁰ /s and 5 repetitions were done at each velocity. The highest value was accepted as the maximal strength. Isometric contraction was carried out at 60 ⁰ knee joint angle (when full extension is accepted as 0 ⁰) during 5 seconds. Ratios of Hamstrings/ Quadriceps were calculated with ratios of strength of flexor and extensor muscles at every angular velocity. Results were analyzed with independent sample t-test and data were given as ±SEM. Strength values of dominant leg were found statistically significantly higher than those of non-dominant leg in 240⁰/s, 180⁰/s, 120⁰/s extension movement and isometric contraction (p<0.05). When examining flexion movement, it was recorded that strength of dominant leg was higher than that of non-dominant leg at 240⁰/s velocity and during isometric contraction (p<0.05). There was no meaningful difference in H/ Q ratios between dominant and non dominant legs (p<0.05). These findings suggest that, there is an important difference in terms of dominant and non-dominant leg strength in high level fencers, though ratio of H/Q is similar, differences in strength performance may affect adversely general performance of the athletes and increase the risk of injury.

Research paper thumbnail of The Effects of Sprint Interval Training on Performance and Ionic Regulation During Exhaustiveexercise in Young Men

Sprint Interval Training (SIT) includes high intensity intermittent forms of cycling or running r... more Sprint Interval Training (SIT) includes high intensity intermittent forms of cycling or running repeated sprints loads. Fatigue can be defined as impairment in muscle performance. Neuromuscular and-or ionic perturbation during fatigue have investigated before. The aim of this study was to investigate the effects of SIT on sprint performance, ionic regulation and levels of creatine kinase (CK) and lactate dehydrogenase (LDH) during exhaustive exercise in young men. Fourteen male (22.3± 3.1 year) participated the study voluntarily. Before the training program, maximal 30 m sprint time and maximum voluntary contraction force (MVC) were measured. The subjects perform the exhaustion cycle test before and after the SIT. Earlobe capillary blood lactate concentration was measured just before and after the exhaustion test. The blood serum potassium (K), inorganic phosphate (Pi), CK and LDH were measured just before and immediately after the exhaustion test from the antecubital vein. After th...

Research paper thumbnail of Şiddetli Hemofili A Hastalarında Sınırlanmış Eklem Açıklığı ile İlişkili Atrofik Kaslarda Su İçi Egzersizlerin Etkisi: Bir Pilot Çalışma

Cukurova Medical Journal, 2014

Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemar... more Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemarthrosis. In this study, the effects of water exercises on the musculoskeletal system of severe haemophilia A patients with muscle and joint problems were investigated. Material and Methods: Eleven severe haemophilia A patients on prophylaxis treatment participated in the study and following a regular exercise protocol. Results: Subjects displayed statistically significant increases in mid-thigh, upper thigh and calf circumference for right leg (42.0 ± 2.4, 43.0 ±2.1 ; 37.1 ±1.9, 39.0 ±1.8; 28.1 ± 1.4, 28.9 ±1.3 respectively) (mean ± SE) in mid-thigh and upper thigh for left leg (36.9 ± 1.5 , 38.9 ± 1.5 ; 41.2 ± 2.2 , 42.9 ± 2) (p<0.05). Compared to pre-exercise values, leg extensor and flexor strength as well as range of motion were increased significantly (96.6 ± 9º vs 104.5± 8º; before and after training for right knee, 98.5 ± 7.6 º vs 104 ± 7.9 º before and after training for left leg respectively) (p<0.05). In addition to that, post training serum level of growth hormone was found to be significantly higher than the pertaining value (p<0.05). Conclusion: These results show that some easily performed exercise protocols such as water exercises can promote muscle development and increase range of motion of the knee joint. Our findings indicate that appropriately designed water exercise may prevent muscle atrophy and joint deformities in haemopliliac patients.

Research paper thumbnail of Effect of boron supplementation on plasma element distribution in ovariectomized rats subjected to acute swimming exercise

Bratislavské lekárske listy, 2011

This study aims to examine how boron supplementation affects distribution of elements in the plas... more This study aims to examine how boron supplementation affects distribution of elements in the plasma of rats whose ovaries were removed and who were subjected to swimming exercise. The study included 80 Sprague-Dawley type female rats, which were equally allocated to 8 groups. Group 1: General control, Group 2: Exercise control; Group 3: Ovariectomized control, Group 4: Ovariectomized exercise, Group 5: IP (intraperitoneal) boron-supplemented control, Group 6: IP boron-supplemented exercise, Group 7: Ovariectomized, IP boron-supplemented exercise, group 8: Ovariectomized, IP boron-supplemented. Following the exercise, blood samples were collected from all animals by decapitation, and analyzed in terms of plasma copper, iron, phosphorus, magnesium, calcium, and zinc using an atomic absorption spectrophotometer. Groups 1 and 5 had the lowest copper (p < 0.01) and the highest zinc and calcium (p < 0.01) levels, in comparison to other groups. Phosphorus levels in groups 3, 5 and 8 ...

Research paper thumbnail of The anaerobic power output in the Wingate test: Effect of gender, load, and duration

Spor Bilimleri Dergisi, Jan 10, 2023

Araştırmada Wingate anaerobik testinde (WAnT) yükün, test süresinin ve cinsiyetin güç çıktılarına... more Araştırmada Wingate anaerobik testinde (WAnT) yükün, test süresinin ve cinsiyetin güç çıktılarına etkileri incelenmiştir. Araştırmaya, 14'ü kadın 33 orta düzeyde aktif genç yetişkin (yaş; 20.9±1.8 yıl) katılmıştır. Katılımcılar laboratuvarı 7 kez ziyaret etmiştir. İlk ziyarette vücut kompozisyonu ölçümleri ve adaptasyon çalışmaları yapılmıştır. Sonraki 6 ayrı ziyarette ise vücut ağırlıklarının % 8,5'ine ve yağsız vücut ağırlığının %11'ine göre verilen yüklerde en az 2 gün arayla sıra takip etmeksizin 15 sn, 20 sn ve 30 sn WAnT uygulamaları yapılmıştır. Cinsiyetin WAnT güç çıktılarına etkisi split-plot ANOVA ile incelenmiştir. Anlamlılık düzeyi p<0.05 olarak kabul edilmiştir. Erkeklerin; zirve, ortalama ve minimum güç çıktıları kadınlarınkinden yüksektir (p<0.01). Zirve güç, vücut ağırlığına göre verilen yükle kıyaslandığında yağsız vücut ağırlığına göre verilen yükte daha yüksektir (p=0.03). Kısa test sürelerinde ortalama güçteki artış erkeklerde kadınlara göre yüksektir (p=0.01). Yağsız vücut ağırlığına göre verilen yük erkeklerde 15 sn ve 20 sn WAnT uygulamalarında daha yüksek ortalama güç çıktıları ortaya çıkarken, kadınlarda yükün etkisi bulunmamıştır (p=0.03). Kısa test sürelerinde kalp atım hızı azalırken, algılanan zorluk derecesi (AZD) puanları da düşmüştür (p<0.01). Yük faktörü AZD'yi etkilememiştir (p>0.05). Araştırma bulguları, WAnT'la ilgili süre ve yük önerilerinde cinsiyet faktörünün göz önünde bulundurulması gerektiğini göstermektedir.

Research paper thumbnail of Soccer Match-induced Heat Stress Effects On Blood Biochemistry And Serum Osmolality

Medicine & Science in Sports & Exercise, 2009

Research paper thumbnail of Araştırma Makalesi

The Anaerobic Power Outputs in The Wingate Test: Effect of Gender, Load, and Duration, 2022

The study aimed to investigate the effects of the interactions among the test durations, loads a... more The study aimed to investigate the effects of the interactions among the test
durations, loads and gender on the anaerobic power in the Wingate anaerobic
test (WAnT). Thirty-three moderately active young adults (age; 20.9±1.8
years), 14of whom are women, participated in the study. The measurements
were performed on seven separate visits at least two days apart. On the first
visit, body composition measurements and a familiarization process were
performed. In the next six visits, 15-s, 20-s and 30-s WAnT at both 8.5% of
body mass and 11% of lean body mass were performed randomly. The effects
of gender on power output changes in WAnT were examined with split-plot
ANOVA. The significance level was set at p<0.05. The load of 11% of lean body
mass provided greater peak power compared with a load of 8.5% of body
weight (p= 0.03). The increases in mean power at the short duration WAnT
were higher in men than in women (p=0.01). In 15-s and 20-s WAnT, high
mean power outputs at a load of lean body mass were obtained in men, while
the load did not affect the mean power in women (p=0.03). The short-duration
WAnT versions led to lower heart rate (HR) and reduced rating of perceived
exertion (RPE) (p<0.01). The load did not affect the RPE (p>0.05). The findings
indicate that gender differences should be considered regarding the duration
of the test and optimal load for WAnT.

Research paper thumbnail of Comparison of Dominant and Nondominant Leg Strength and Hamstring: Quadriceps Ratio in Professional Basketball Players

Kinesiologia Slovenica

The literature has revealed that knee injuries are the most common injury among basketball player... more The literature has revealed that knee injuries are the most common injury among basketball players. The strength ratios dominant/non-dominant and posterior-anterior around the knee joint are used to evaluate strength balances. But there has been far less research published about strength evaluation in professional-level basketball. The objectives of the present study were: (i) to compare hamstring and quadriceps muscles’ strength values during concentric knee extension and flexion at different angular velocities at professional level basketballers, (ii) to determine dominant and non-dominant strength values during these contractions. 13 professional male basketball athletes voluntarily participated in the study. The leg strength was evaluated with an isokinetic dynamometer at 240- 180-120-600 /s angular velocities. The hamstring and quadriceps unilateral peak torque ratio (H/Q) and dominant non-dominant strength ratio were calculated. The independent t-test was computed to bilateral...

Research paper thumbnail of Substrate oxidation during incremental exercise in young women: the effects of 2-week high intensity interval training

Research paper thumbnail of Electromyographic Characteristics of the Quadriceps Femoris During Performance of the Wingate Test

WOS: 000409261000004The purpose of this study was to investigate the relationship between the Win... more WOS: 000409261000004The purpose of this study was to investigate the relationship between the Wingate Anaerobic Test (WAT) outputs and the Electromyography (EMG) parameters. Seventeen sedentary college males participated in the study (mean +/- SD, age 20.5 +/- 2.4 y; height 174.2 +/- 4.3 cm; body mass 66.2 +/- 7.6 kg). Surface electromyographic signals of vastus medialis, vastus lateralis and rektus femoris were recorded during WAT. Power, normalized power, cadence, Mean power frequency (MPF) of each muscle and Root Mean Square (RMS) EMG were calculated as 5 s averages. Mean differences in power and cadence, mean EMG frequency and RMS EMG were analyzed by repeated measures one way ANOVA with Bonferroni post hoc adjustment for multiple pairwise comparisons. Pearson's correlation coefficient was used to evaluate the relationship between the WAT performance variables and muscle EMG outputs All data are presented as mean +/- SD. The peak power and cadence decreased significantly (p0...

Research paper thumbnail of Comparison of bilateral isokinetic and isometric strength differences in elite young male and female taekwondo athletes

Journal of Exercise Rehabilitation

Definition of strength imbalance between legs and muscles does not only play a decisive role for ... more Definition of strength imbalance between legs and muscles does not only play a decisive role for higher performance but also prevents sport injury. The purpose of this study was to determine bilateral differences on isokinetic and isometric strength of knee extensor and flexor muscles in male and female elite young taekwondo athletes. Ten male (age: 19.40± 0.84 years) and female (age: 18.24± 1.42 years) taekwondo athletes of the Turkish national team between 17–20-year of age participated in the study. Concentric peak torque of hamstring (H) and quadriceps (Q) of the dominant (D) and nondominant leg (ND) was evaluated using isokinetic machine (Cybex Humac Norm) at 60° and 180°/sec. Isometric peak torque of both legs was determined at 60°. Significant differences were found between genders (P<0.05). Concentric and isometric knee strength was significantly greater in male than that of female (P< 0.05). Although no significant bilateral strength difference was found in both sexes...

Research paper thumbnail of Substrate Oxidation Rates During Incremental Exercise in Trained and Untrained Young Adults

The aim of the present study is to examine the differences in maximal fat oxidation rate during e... more The aim of the present study is to examine the differences in maximal fat oxidation rate during exercise between trained and untrained young adult men. 50 healthy, trained (age= 20.75±0.31 years, BMI= 21.75±0.34 kg/m, n= 24) and untrained (age= 21.71±0.48 years, BMI= 22.19±0.41 kg/m, n= 26) young men volunteered to participate in this study. After overnight fast, subjects tested on a Monark cycle ergometer and started pedaling at an external power output of 60 W. Subjects’ pedaling cadence was kept at 60 revolutions/min (rpm). Every 3.5 min, the power output was increased by 35 W until exhaustion. Maximal oxygen uptake and maximal fat oxidation rate were determined with indirect calorimetry by using an incremental exercise test on cycle. An unpaired Student’s t-test was used to determine the differences between the groups. Oxygen uptake, respiratory exchange ratio, heart rate, relative contribution of fat and carbohydrate to energy expenditure at exercise intensity that elicits maxi...

Research paper thumbnail of Akut statik germe egzersizlerinin izokinetik aralıktaki pik tork ve izometrik diz ekstansiyon-fleksiyon kuvvetine etkisi

Ankara Üniversitesi Beden Eğitimi ve Spor Yüksekokulu SPORMETRE Beden Eğitimi ve Spor Bilimleri Dergisi, 2017

Bu araştırmanın amacı akut statik germe uygulamasının diz ekstansiyon-fleksiyon hareketinde hızın... more Bu araştırmanın amacı akut statik germe uygulamasının diz ekstansiyon-fleksiyon hareketinde hızın sabit kaldığı izokinetik aralıktaki pik tork ve izometrik pik kuvvete olan etkilerini araştırmaktır. Araştırmaya 14 sağlıklı erkek (20,4±1,2 yaş; 70,1±2,7 kg vücut ağırlığı; 176,4±3,6 cm boy uzunluğu) gönüllü olarak katıldı. Gönüllüler ısınmanın ardından izokinetik dinamometrede (Cybex NORM Computerized Sports Medicine Inc. USA) 210 ⁰ /sn ve 60 ⁰ /sn hızda izokinetik konsantrik diz ekstansiyon-fleksiyon; ve son olarak da izometrik maksimal ekstansiyon-fleksiyon hareketi yaptılar. Kuvvet ölçümlerinden sonra 3x30 sn süre ile quadriceps ve hamstring kas gruplarına statik germe uygulaması yaptırıldı. Germe uygulamasının ardından kuvvet ölçümleri tekrar edildi. Sonuçlar ortalama ± standart hata olarak verildi ve germe öncesi-sonrası kuvvet değerleri paired t testi ile analiz edildi. Germe egzersizi sonrasında 210 ⁰ /sn ve 60 ⁰ /sn hızda izokinetik aralığa ait ekstansiyon ve fleksiyon hareketlerinde pik tork değerlerinde azalma tespit edildi (p<0,05). Maksimal izometrik kasılma kuvveti de hem ekstansiyon hem de fleksiyon hareketinde anlamlı azalma gösterdi (p<0,05). Bulgular akut germe uygulamasının izometrik kasılma sırasındaki pik kuvvetin ve izokinetik aralıktaki pik torkun ekstansiyon ve fleksiyon hareketlerinde baskılandığını göstermiştir. Bu nedenle performans ölçümlerinde ve fizik tedavi uygulamalarında bu husus dikkate alınmalıdır.

Research paper thumbnail of The effect of 30-m repeated sprint exercise on muscle damage indicators, serum insulin-like growth factor-Iand cortisol

Biomedical Human Kinetics, 2019

Summary Study aim: The purpose of this study was to examine the effects of arepeated sprint exerc... more Summary Study aim: The purpose of this study was to examine the effects of arepeated sprint exercise protocol on muscle damage indicators, serum IGF-Iand cortisol levels. Material and methods: Nine trained male subjects (age 23.3 ± 3.6 years) completed arepeated sprint protocol consisting of two sets of 10 × 30-m maximal sprints with 30 s of active recovery between sprints and 5 min of passive recovery between sets. The isometric strength and flexibility were measured before, immediately after and 24 hours after exercise. 30-m maximal sprint time was measured before and 24 hours after exercise. Blood samples were taken before, immediately after and 24 hours after exercise. Results: Isometric strength and flexibility were significantly decreased after exercise and 24 hours after exercise (p < 0.05). 30-m sprint time was significantly increased 24 hours after exercise (p < 0.05). Asignificant increase in serum lactate dehydrogenase, IGF-Iand cortisol were found after exercise (p...

Research paper thumbnail of The Acute Effect of a Single Exhaustive Sprint Exercise Session on Post-Exercise Fat Oxidation Rate

Biomedical Human Kinetics, 2018

It is well known that substrate oxidation rates are increased by exercise. The present study had ... more It is well known that substrate oxidation rates are increased by exercise. The present study had two main objectives: firstly, to examine the effect of a single exhaustive exercise session on post-exercise substrate oxidation and energy expenditure; and secondly, to determine the differences between athletes and non-athletes. Material and methods: Eighteen healthy male athletes (mean ± SD age; 19.38 ± 2.26 years, VO2max; 60.57 ± 3.90 ml · kg-1 · min-1, n = 8) and non-athletes (age; 20.30 ± 1.26 years, VO2max; 44.97 ± 5.43 ml · kg-1 ·min-1, n = 10) volunteered to participate in the study. After an overnight fast, subjects performed a single sprint exercise session on a cycle ergometer with individual loads (0.075 kg per body weight) until volitional exhaustion. Energy expenditure (EE) and the substrate oxidation rate were measured at rest and during the post-exercise recovery period using indirect calorimetry. Results: Exhaustive exercise significantly increased post-exercise fat oxi...

Research paper thumbnail of Effect of water exercise on atrophic muscles associated with limited range of motion in severe haemophilia A patients: A pilot study

Cukurova Medical Journal, 2014

Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemar... more Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemarthrosis. In this study, the effects of water exercises on the musculoskeletal system of severe haemophilia A patients with muscle and joint problems were investigated. Material and Methods: Eleven severe haemophilia A patients on prophylaxis treatment participated in the study and following a regular exercise protocol. Results: Subjects displayed statistically significant increases in mid-thigh, upper thigh and calf circumference for right leg (42.0 ± 2.4, 43.0 ±2.1 ; 37.1 ±1.9, 39.0 ±1.8; 28.1 ± 1.4, 28.9 ±1.3 respectively) (mean ± SE) in mid-thigh and upper thigh for left leg (36.9 ± 1.5 , 38.9 ± 1.5 ; 41.2 ± 2.2 , 42.9 ± 2) (p&lt;0.05). Compared to pre-exercise values, leg extensor and flexor strength as well as range of motion were increased significantly (96.6 ± 9º vs 104.5± 8º; before and after training for right knee, 98.5 ± 7.6 º vs 104 ± 7.9 º before and after training for left leg respectively) (p&lt;0.05). In addition to that, post training serum level of growth hormone was found to be significantly higher than the pertaining value (p&lt;0.05). Conclusion: These results show that some easily performed exercise protocols such as water exercises can promote muscle development and increase range of motion of the knee joint. Our findings indicate that appropriately designed water exercise may prevent muscle atrophy and joint deformities in haemopliliac patients. ÖZET Amaç: Hemofili tekrarlayan kanama ataklarına sekonder olarak kas-iskelet sorunlarına neden olmaktadır. Bu çalışmada, su içi egzersizlerinin, kas ve eklem problemleri olan şiddetli hemofili A hastalarında etkilerinin araştırılması amaçlanmıştır. Materyal ve Metod: Proflaksi alan, şiddetli hemofili A hastası (n=11) düzenli olarak egzersiz uygulamasına alınmıştır. Bulgular: Çalışmaya katılan hastaların, sağ bacaklarında üst bacak, orta bacak ve calf çevrelerinde (42.0 ± 2.4, 43.0 ±2.1 ; 37.1 ±1.9, 39.0 ±1.8; 28.1 ± 1.4, 28.9 ±1.3 respectively) (mean ± SE), sol bacaklarında üst ve orta bacak çevrelerinde (36.9 ± 1.5 , 38.9 ± 1.5 ; 41.2 ± 2.2 , 42.9 ± 2) egzersiz öncesi değerlerine göre istatistiksel olarak anlamlı

Research paper thumbnail of The effects of boron administration on plasma leptin and lactate levels in ovariectomized rats which had acute swimming exercise

Neuro endocrinology letters, 2008

The aim of this study was to investigate the effects of intraperitoneal (IP) boron administration... more The aim of this study was to investigate the effects of intraperitoneal (IP) boron administration on leptin and lactate levels in swimming exercise in ovariectomized rats. Eighty adult female rats were equally allocated into 8 groups. Group 1; Control, Group 2; exercise control, Group 3; ovariectomized control, Group 4; Boron control (2 mg/kg/day), Group 5; ovariectomized plus exercise, Group 6; exercise plus IP boron, Group 7; ovariectomized and exercise group plus IP boron, Group 8; ovariectomized plus boron. Leptin levels in Group 1 were higher than those in Groups 2, 3 and 4 and lower than those in groups 5, 6, 7 and 8 (p<0.01). Leptin levels were higher in Group 3 than in Groups 2 and 4 and significantly lower than in all other groups (p<0.01). Lactate levels in Groups 2 and 4 were higher than those in all other groups (p<0.01). Lactate levels were significantly lower in Groups 1, 3, 5 and 8 than in all other groups (p<0.01). Lactate levels in Groups 6 and 7 were si...

Research paper thumbnail of THE EFFECTS OF SPRINT INTERVAL TRAINING AND DETRAINING ON AEROBIC FITNESS IN YOUNG ADULTS OS EFEITOS DO TREINO INTERVALADO DE SPRINT E DO DESTREINO NA APTIDÃO AERÓBICA DE JOVENS ADULTOS

https://doi.org/10.15517/pensarmov.v22i1.58582, 2024

Sprint interval training (SIT) has been known to improve aerobic performance as well as health an... more Sprint interval training (SIT) has been known to improve aerobic performance as well as health and fitness markers in non-athletic population. However, there's not enough information about performance when SIT is stopped. The aim of this study was to investigate the effect of SIT on aerobic capacity after training and detraining process. The general design of the study was classified as before SIT, training period, after SIT and detraining period measurements. The subjects (n=26) completed baseline measurements 20-m shuttle run test and then were randomized as training and control groups. The control group continued their daily routine and the training group run SIT for 4 weeks. The 20-m shuttle run test was applied before, after training, and 4 th and 8 th detraining weeks. After the training period, aerobic performance increased in the training group (p<0.05). Also, aerobic performance increases were maintained for the 4 th weeks of detraining (p<0.05). But the performance increments disappeared in the 8 th detraining week (p>0.05). Taking a break from the exercise program for more than 4 weeks in healthy young individuals may cause the positive effects on maximal oxygen uptake (VO 2max) of SIT to disappear. SIT participants should not take a break from exercise for more than 4 weeks to maintain aerobic gain.

Research paper thumbnail of 11-14 Yaş Grubu Tenisçilerin Bilateral ve Unilateral Diz Kuvvet Profilinin Belirlenmesi

Kuvvet teniste onemli performans kriterlerinden birisidir. Extremiteler arasi bilateral ve agonis... more Kuvvet teniste onemli performans kriterlerinden birisidir. Extremiteler arasi bilateral ve agonist-antagonist arasi unilateral kuvvet asimetrisi yaralanma risklerini artirmaktadir. Literaturde tenis bransinda omuz eklemine ait kuvvet arastirmalari oldugu halde diz eklemine ait kuvvet degerlerini ve asimetrisini inceleyen kisitli arastirma vardir. Bu arastirmanin amaci tenisci cocuklarda diz extensiyon fleksiyon kas kuvvetinde asimetri olup olmadigini degerlendirmektir. Calismaya yas ortalamasi 12,8± 1,9 olan 5 kiz ve 3 erkek sporcu katilmistir. Tanimlayici olcumlerin (vucut kitle indeksi, vucut yag yuzdesi, VO2max, 20 m sprint performansi) yapilmasinin ardindan izokinetik dinamometre ile 240-180-120-600 sn-1 hizlarda baskin olan ve olmayan diz ekstensiyon fleksiyon kas kuvveti olculmustur. En yuksek kuvvetin kaydedildigi tekrar degerlendirmeye alinmistir. H/Q oranlarinin hesaplanmasinda her acisal hizda en yuksek kuvvetin olculdugu fleksiyon ve ekstensiyon degerleri oranlanmistir. Sonuclarin karsilastirilmasi bagimsiz gruplarda t testi ile yapilmis ve sonuclar ortalama± SS olarak verilmistir. p<0,05 istatiksel olarak anlamli kabul edilmistir. Dominant ve non-dominant tarafa ait kuvvet degerlerinde ve H/Q oranlarinda istatistiksel olarak anlamli farklilik tespit edilmemistir. Sonuclar 11-14 yas arasi tenisci cocuklarda diz extensiyon fleksiyon kuvvet asimetrisi olmadigini ve kuvvet degerlerinin simetrik oldugunu gostermektedir.

Research paper thumbnail of Antrenmanli Ve Antrenmansiz Genç Yeti̇şki̇nlerde Egzersi̇z Sirasinda Substrat Oksi̇dasyon Hizi

Beden Egitimi ve Spor Bilimleri Dergisi, Apr 12, 2017

The aim of the present study is to examine the differences in maximal fat oxidation rate during e... more The aim of the present study is to examine the differences in maximal fat oxidation rate during exercise between trained and untrained young adult men. 50 healthy, trained (age= 20.75±0.31 years, BMI= 21.75±0.34 kg/m 2 , n= 24) and untrained (age= 21.71±0.48 years, BMI= 22.19±0.41 kg/m 2 , n= 26) young men volunteered to participate in this study. After overnight fast, subjects tested on a Monark cycle ergometer and started pedaling at an external power output of 60 W. Subjects' pedaling cadence was kept at 60 revolutions/min (rpm). Every 3.5 min, the power output was increased by 35 W until exhaustion. Maximal oxygen uptake and maximal fat oxidation rate were determined with indirect calorimetry by using an incremental exercise test on cycle. An unpaired Student's t-test was used to determine the differences between the groups. Oxygen uptake, respiratory exchange ratio, heart rate, relative contribution of fat and carbohydrate to energy expenditure at exercise intensity that elicits maximal fat oxidation (Fatmax) were significantly different between trained and untrained subjects (p<0.05). Maximal fat oxidation rate was significantly higher in trained group than untrained group (p<0.05). On the other hand, carbohydrate oxidation rate and percent of VO2max at Fatmax were similar (p>0.05). The study results suggest that the trained individuals also have higher maximal oxygen uptake and fat oxidation rate than untrained young adults. Also, it can be said that the relative contribution of fat and carbohydrate to energy expenditure at Fatmax were affected training status.

Research paper thumbnail of Evaluation of Bilateral Asymmetry of Concentric and Isometric Knee Extension- Flexion Strength in Male Fencers

DergiPark (Istanbul University), Aug 1, 2016

Fencing is an Olympic combat sport in which two athletes fight through their weapons such as epee... more Fencing is an Olympic combat sport in which two athletes fight through their weapons such as epee, foil and sabre. During the competition, athletes hold the weapon with their dominant arm and stay in defense or attack positions by stepping forward, behind or right/left with dominant leg in front. Depending upon chronic applications structural and/or functional asymmetries between dominant and non-dominant extremities are shown with cross-sectional area and performance measurements. The aim of this study was to compare dominant and non-dominant knee flexion-extension strength values of epee fencers. The study was conducted on nine athletes whose age average was 18,1± 1,4 years. Strength measurements of dominant and non-dominant knees were carried out by using concentric and isometric modules of isokinetic dynamometers (Cybex II). Angular velocities were determined as 240-180-120-60 ⁰ /s and 5 repetitions were done at each velocity. The highest value was accepted as the maximal strength. Isometric contraction was carried out at 60 ⁰ knee joint angle (when full extension is accepted as 0 ⁰) during 5 seconds. Ratios of Hamstrings/ Quadriceps were calculated with ratios of strength of flexor and extensor muscles at every angular velocity. Results were analyzed with independent sample t-test and data were given as ±SEM. Strength values of dominant leg were found statistically significantly higher than those of non-dominant leg in 240⁰/s, 180⁰/s, 120⁰/s extension movement and isometric contraction (p<0.05). When examining flexion movement, it was recorded that strength of dominant leg was higher than that of non-dominant leg at 240⁰/s velocity and during isometric contraction (p<0.05). There was no meaningful difference in H/ Q ratios between dominant and non dominant legs (p<0.05). These findings suggest that, there is an important difference in terms of dominant and non-dominant leg strength in high level fencers, though ratio of H/Q is similar, differences in strength performance may affect adversely general performance of the athletes and increase the risk of injury.

Research paper thumbnail of The Effects of Sprint Interval Training on Performance and Ionic Regulation During Exhaustiveexercise in Young Men

Sprint Interval Training (SIT) includes high intensity intermittent forms of cycling or running r... more Sprint Interval Training (SIT) includes high intensity intermittent forms of cycling or running repeated sprints loads. Fatigue can be defined as impairment in muscle performance. Neuromuscular and-or ionic perturbation during fatigue have investigated before. The aim of this study was to investigate the effects of SIT on sprint performance, ionic regulation and levels of creatine kinase (CK) and lactate dehydrogenase (LDH) during exhaustive exercise in young men. Fourteen male (22.3± 3.1 year) participated the study voluntarily. Before the training program, maximal 30 m sprint time and maximum voluntary contraction force (MVC) were measured. The subjects perform the exhaustion cycle test before and after the SIT. Earlobe capillary blood lactate concentration was measured just before and after the exhaustion test. The blood serum potassium (K), inorganic phosphate (Pi), CK and LDH were measured just before and immediately after the exhaustion test from the antecubital vein. After th...

Research paper thumbnail of Şiddetli Hemofili A Hastalarında Sınırlanmış Eklem Açıklığı ile İlişkili Atrofik Kaslarda Su İçi Egzersizlerin Etkisi: Bir Pilot Çalışma

Cukurova Medical Journal, 2014

Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemar... more Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemarthrosis. In this study, the effects of water exercises on the musculoskeletal system of severe haemophilia A patients with muscle and joint problems were investigated. Material and Methods: Eleven severe haemophilia A patients on prophylaxis treatment participated in the study and following a regular exercise protocol. Results: Subjects displayed statistically significant increases in mid-thigh, upper thigh and calf circumference for right leg (42.0 ± 2.4, 43.0 ±2.1 ; 37.1 ±1.9, 39.0 ±1.8; 28.1 ± 1.4, 28.9 ±1.3 respectively) (mean ± SE) in mid-thigh and upper thigh for left leg (36.9 ± 1.5 , 38.9 ± 1.5 ; 41.2 ± 2.2 , 42.9 ± 2) (p<0.05). Compared to pre-exercise values, leg extensor and flexor strength as well as range of motion were increased significantly (96.6 ± 9º vs 104.5± 8º; before and after training for right knee, 98.5 ± 7.6 º vs 104 ± 7.9 º before and after training for left leg respectively) (p<0.05). In addition to that, post training serum level of growth hormone was found to be significantly higher than the pertaining value (p<0.05). Conclusion: These results show that some easily performed exercise protocols such as water exercises can promote muscle development and increase range of motion of the knee joint. Our findings indicate that appropriately designed water exercise may prevent muscle atrophy and joint deformities in haemopliliac patients.

Research paper thumbnail of Effect of boron supplementation on plasma element distribution in ovariectomized rats subjected to acute swimming exercise

Bratislavské lekárske listy, 2011

This study aims to examine how boron supplementation affects distribution of elements in the plas... more This study aims to examine how boron supplementation affects distribution of elements in the plasma of rats whose ovaries were removed and who were subjected to swimming exercise. The study included 80 Sprague-Dawley type female rats, which were equally allocated to 8 groups. Group 1: General control, Group 2: Exercise control; Group 3: Ovariectomized control, Group 4: Ovariectomized exercise, Group 5: IP (intraperitoneal) boron-supplemented control, Group 6: IP boron-supplemented exercise, Group 7: Ovariectomized, IP boron-supplemented exercise, group 8: Ovariectomized, IP boron-supplemented. Following the exercise, blood samples were collected from all animals by decapitation, and analyzed in terms of plasma copper, iron, phosphorus, magnesium, calcium, and zinc using an atomic absorption spectrophotometer. Groups 1 and 5 had the lowest copper (p < 0.01) and the highest zinc and calcium (p < 0.01) levels, in comparison to other groups. Phosphorus levels in groups 3, 5 and 8 ...

Research paper thumbnail of The anaerobic power output in the Wingate test: Effect of gender, load, and duration

Spor Bilimleri Dergisi, Jan 10, 2023

Araştırmada Wingate anaerobik testinde (WAnT) yükün, test süresinin ve cinsiyetin güç çıktılarına... more Araştırmada Wingate anaerobik testinde (WAnT) yükün, test süresinin ve cinsiyetin güç çıktılarına etkileri incelenmiştir. Araştırmaya, 14'ü kadın 33 orta düzeyde aktif genç yetişkin (yaş; 20.9±1.8 yıl) katılmıştır. Katılımcılar laboratuvarı 7 kez ziyaret etmiştir. İlk ziyarette vücut kompozisyonu ölçümleri ve adaptasyon çalışmaları yapılmıştır. Sonraki 6 ayrı ziyarette ise vücut ağırlıklarının % 8,5'ine ve yağsız vücut ağırlığının %11'ine göre verilen yüklerde en az 2 gün arayla sıra takip etmeksizin 15 sn, 20 sn ve 30 sn WAnT uygulamaları yapılmıştır. Cinsiyetin WAnT güç çıktılarına etkisi split-plot ANOVA ile incelenmiştir. Anlamlılık düzeyi p<0.05 olarak kabul edilmiştir. Erkeklerin; zirve, ortalama ve minimum güç çıktıları kadınlarınkinden yüksektir (p<0.01). Zirve güç, vücut ağırlığına göre verilen yükle kıyaslandığında yağsız vücut ağırlığına göre verilen yükte daha yüksektir (p=0.03). Kısa test sürelerinde ortalama güçteki artış erkeklerde kadınlara göre yüksektir (p=0.01). Yağsız vücut ağırlığına göre verilen yük erkeklerde 15 sn ve 20 sn WAnT uygulamalarında daha yüksek ortalama güç çıktıları ortaya çıkarken, kadınlarda yükün etkisi bulunmamıştır (p=0.03). Kısa test sürelerinde kalp atım hızı azalırken, algılanan zorluk derecesi (AZD) puanları da düşmüştür (p<0.01). Yük faktörü AZD'yi etkilememiştir (p>0.05). Araştırma bulguları, WAnT'la ilgili süre ve yük önerilerinde cinsiyet faktörünün göz önünde bulundurulması gerektiğini göstermektedir.

Research paper thumbnail of Soccer Match-induced Heat Stress Effects On Blood Biochemistry And Serum Osmolality

Medicine & Science in Sports & Exercise, 2009

Research paper thumbnail of Araştırma Makalesi

The Anaerobic Power Outputs in The Wingate Test: Effect of Gender, Load, and Duration, 2022

The study aimed to investigate the effects of the interactions among the test durations, loads a... more The study aimed to investigate the effects of the interactions among the test
durations, loads and gender on the anaerobic power in the Wingate anaerobic
test (WAnT). Thirty-three moderately active young adults (age; 20.9±1.8
years), 14of whom are women, participated in the study. The measurements
were performed on seven separate visits at least two days apart. On the first
visit, body composition measurements and a familiarization process were
performed. In the next six visits, 15-s, 20-s and 30-s WAnT at both 8.5% of
body mass and 11% of lean body mass were performed randomly. The effects
of gender on power output changes in WAnT were examined with split-plot
ANOVA. The significance level was set at p<0.05. The load of 11% of lean body
mass provided greater peak power compared with a load of 8.5% of body
weight (p= 0.03). The increases in mean power at the short duration WAnT
were higher in men than in women (p=0.01). In 15-s and 20-s WAnT, high
mean power outputs at a load of lean body mass were obtained in men, while
the load did not affect the mean power in women (p=0.03). The short-duration
WAnT versions led to lower heart rate (HR) and reduced rating of perceived
exertion (RPE) (p<0.01). The load did not affect the RPE (p>0.05). The findings
indicate that gender differences should be considered regarding the duration
of the test and optimal load for WAnT.

Research paper thumbnail of Comparison of Dominant and Nondominant Leg Strength and Hamstring: Quadriceps Ratio in Professional Basketball Players

Kinesiologia Slovenica

The literature has revealed that knee injuries are the most common injury among basketball player... more The literature has revealed that knee injuries are the most common injury among basketball players. The strength ratios dominant/non-dominant and posterior-anterior around the knee joint are used to evaluate strength balances. But there has been far less research published about strength evaluation in professional-level basketball. The objectives of the present study were: (i) to compare hamstring and quadriceps muscles’ strength values during concentric knee extension and flexion at different angular velocities at professional level basketballers, (ii) to determine dominant and non-dominant strength values during these contractions. 13 professional male basketball athletes voluntarily participated in the study. The leg strength was evaluated with an isokinetic dynamometer at 240- 180-120-600 /s angular velocities. The hamstring and quadriceps unilateral peak torque ratio (H/Q) and dominant non-dominant strength ratio were calculated. The independent t-test was computed to bilateral...

Research paper thumbnail of Substrate oxidation during incremental exercise in young women: the effects of 2-week high intensity interval training

Research paper thumbnail of Electromyographic Characteristics of the Quadriceps Femoris During Performance of the Wingate Test

WOS: 000409261000004The purpose of this study was to investigate the relationship between the Win... more WOS: 000409261000004The purpose of this study was to investigate the relationship between the Wingate Anaerobic Test (WAT) outputs and the Electromyography (EMG) parameters. Seventeen sedentary college males participated in the study (mean +/- SD, age 20.5 +/- 2.4 y; height 174.2 +/- 4.3 cm; body mass 66.2 +/- 7.6 kg). Surface electromyographic signals of vastus medialis, vastus lateralis and rektus femoris were recorded during WAT. Power, normalized power, cadence, Mean power frequency (MPF) of each muscle and Root Mean Square (RMS) EMG were calculated as 5 s averages. Mean differences in power and cadence, mean EMG frequency and RMS EMG were analyzed by repeated measures one way ANOVA with Bonferroni post hoc adjustment for multiple pairwise comparisons. Pearson's correlation coefficient was used to evaluate the relationship between the WAT performance variables and muscle EMG outputs All data are presented as mean +/- SD. The peak power and cadence decreased significantly (p0...

Research paper thumbnail of Comparison of bilateral isokinetic and isometric strength differences in elite young male and female taekwondo athletes

Journal of Exercise Rehabilitation

Definition of strength imbalance between legs and muscles does not only play a decisive role for ... more Definition of strength imbalance between legs and muscles does not only play a decisive role for higher performance but also prevents sport injury. The purpose of this study was to determine bilateral differences on isokinetic and isometric strength of knee extensor and flexor muscles in male and female elite young taekwondo athletes. Ten male (age: 19.40± 0.84 years) and female (age: 18.24± 1.42 years) taekwondo athletes of the Turkish national team between 17–20-year of age participated in the study. Concentric peak torque of hamstring (H) and quadriceps (Q) of the dominant (D) and nondominant leg (ND) was evaluated using isokinetic machine (Cybex Humac Norm) at 60° and 180°/sec. Isometric peak torque of both legs was determined at 60°. Significant differences were found between genders (P<0.05). Concentric and isometric knee strength was significantly greater in male than that of female (P< 0.05). Although no significant bilateral strength difference was found in both sexes...

Research paper thumbnail of Substrate Oxidation Rates During Incremental Exercise in Trained and Untrained Young Adults

The aim of the present study is to examine the differences in maximal fat oxidation rate during e... more The aim of the present study is to examine the differences in maximal fat oxidation rate during exercise between trained and untrained young adult men. 50 healthy, trained (age= 20.75±0.31 years, BMI= 21.75±0.34 kg/m, n= 24) and untrained (age= 21.71±0.48 years, BMI= 22.19±0.41 kg/m, n= 26) young men volunteered to participate in this study. After overnight fast, subjects tested on a Monark cycle ergometer and started pedaling at an external power output of 60 W. Subjects’ pedaling cadence was kept at 60 revolutions/min (rpm). Every 3.5 min, the power output was increased by 35 W until exhaustion. Maximal oxygen uptake and maximal fat oxidation rate were determined with indirect calorimetry by using an incremental exercise test on cycle. An unpaired Student’s t-test was used to determine the differences between the groups. Oxygen uptake, respiratory exchange ratio, heart rate, relative contribution of fat and carbohydrate to energy expenditure at exercise intensity that elicits maxi...

Research paper thumbnail of Akut statik germe egzersizlerinin izokinetik aralıktaki pik tork ve izometrik diz ekstansiyon-fleksiyon kuvvetine etkisi

Ankara Üniversitesi Beden Eğitimi ve Spor Yüksekokulu SPORMETRE Beden Eğitimi ve Spor Bilimleri Dergisi, 2017

Bu araştırmanın amacı akut statik germe uygulamasının diz ekstansiyon-fleksiyon hareketinde hızın... more Bu araştırmanın amacı akut statik germe uygulamasının diz ekstansiyon-fleksiyon hareketinde hızın sabit kaldığı izokinetik aralıktaki pik tork ve izometrik pik kuvvete olan etkilerini araştırmaktır. Araştırmaya 14 sağlıklı erkek (20,4±1,2 yaş; 70,1±2,7 kg vücut ağırlığı; 176,4±3,6 cm boy uzunluğu) gönüllü olarak katıldı. Gönüllüler ısınmanın ardından izokinetik dinamometrede (Cybex NORM Computerized Sports Medicine Inc. USA) 210 ⁰ /sn ve 60 ⁰ /sn hızda izokinetik konsantrik diz ekstansiyon-fleksiyon; ve son olarak da izometrik maksimal ekstansiyon-fleksiyon hareketi yaptılar. Kuvvet ölçümlerinden sonra 3x30 sn süre ile quadriceps ve hamstring kas gruplarına statik germe uygulaması yaptırıldı. Germe uygulamasının ardından kuvvet ölçümleri tekrar edildi. Sonuçlar ortalama ± standart hata olarak verildi ve germe öncesi-sonrası kuvvet değerleri paired t testi ile analiz edildi. Germe egzersizi sonrasında 210 ⁰ /sn ve 60 ⁰ /sn hızda izokinetik aralığa ait ekstansiyon ve fleksiyon hareketlerinde pik tork değerlerinde azalma tespit edildi (p<0,05). Maksimal izometrik kasılma kuvveti de hem ekstansiyon hem de fleksiyon hareketinde anlamlı azalma gösterdi (p<0,05). Bulgular akut germe uygulamasının izometrik kasılma sırasındaki pik kuvvetin ve izokinetik aralıktaki pik torkun ekstansiyon ve fleksiyon hareketlerinde baskılandığını göstermiştir. Bu nedenle performans ölçümlerinde ve fizik tedavi uygulamalarında bu husus dikkate alınmalıdır.

Research paper thumbnail of The effect of 30-m repeated sprint exercise on muscle damage indicators, serum insulin-like growth factor-Iand cortisol

Biomedical Human Kinetics, 2019

Summary Study aim: The purpose of this study was to examine the effects of arepeated sprint exerc... more Summary Study aim: The purpose of this study was to examine the effects of arepeated sprint exercise protocol on muscle damage indicators, serum IGF-Iand cortisol levels. Material and methods: Nine trained male subjects (age 23.3 ± 3.6 years) completed arepeated sprint protocol consisting of two sets of 10 × 30-m maximal sprints with 30 s of active recovery between sprints and 5 min of passive recovery between sets. The isometric strength and flexibility were measured before, immediately after and 24 hours after exercise. 30-m maximal sprint time was measured before and 24 hours after exercise. Blood samples were taken before, immediately after and 24 hours after exercise. Results: Isometric strength and flexibility were significantly decreased after exercise and 24 hours after exercise (p < 0.05). 30-m sprint time was significantly increased 24 hours after exercise (p < 0.05). Asignificant increase in serum lactate dehydrogenase, IGF-Iand cortisol were found after exercise (p...

Research paper thumbnail of The Acute Effect of a Single Exhaustive Sprint Exercise Session on Post-Exercise Fat Oxidation Rate

Biomedical Human Kinetics, 2018

It is well known that substrate oxidation rates are increased by exercise. The present study had ... more It is well known that substrate oxidation rates are increased by exercise. The present study had two main objectives: firstly, to examine the effect of a single exhaustive exercise session on post-exercise substrate oxidation and energy expenditure; and secondly, to determine the differences between athletes and non-athletes. Material and methods: Eighteen healthy male athletes (mean ± SD age; 19.38 ± 2.26 years, VO2max; 60.57 ± 3.90 ml · kg-1 · min-1, n = 8) and non-athletes (age; 20.30 ± 1.26 years, VO2max; 44.97 ± 5.43 ml · kg-1 ·min-1, n = 10) volunteered to participate in the study. After an overnight fast, subjects performed a single sprint exercise session on a cycle ergometer with individual loads (0.075 kg per body weight) until volitional exhaustion. Energy expenditure (EE) and the substrate oxidation rate were measured at rest and during the post-exercise recovery period using indirect calorimetry. Results: Exhaustive exercise significantly increased post-exercise fat oxi...

Research paper thumbnail of Effect of water exercise on atrophic muscles associated with limited range of motion in severe haemophilia A patients: A pilot study

Cukurova Medical Journal, 2014

Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemar... more Purpose: Haemophilia causes musculoskeletal problems over many years secondary to recurrent hemarthrosis. In this study, the effects of water exercises on the musculoskeletal system of severe haemophilia A patients with muscle and joint problems were investigated. Material and Methods: Eleven severe haemophilia A patients on prophylaxis treatment participated in the study and following a regular exercise protocol. Results: Subjects displayed statistically significant increases in mid-thigh, upper thigh and calf circumference for right leg (42.0 ± 2.4, 43.0 ±2.1 ; 37.1 ±1.9, 39.0 ±1.8; 28.1 ± 1.4, 28.9 ±1.3 respectively) (mean ± SE) in mid-thigh and upper thigh for left leg (36.9 ± 1.5 , 38.9 ± 1.5 ; 41.2 ± 2.2 , 42.9 ± 2) (p&lt;0.05). Compared to pre-exercise values, leg extensor and flexor strength as well as range of motion were increased significantly (96.6 ± 9º vs 104.5± 8º; before and after training for right knee, 98.5 ± 7.6 º vs 104 ± 7.9 º before and after training for left leg respectively) (p&lt;0.05). In addition to that, post training serum level of growth hormone was found to be significantly higher than the pertaining value (p&lt;0.05). Conclusion: These results show that some easily performed exercise protocols such as water exercises can promote muscle development and increase range of motion of the knee joint. Our findings indicate that appropriately designed water exercise may prevent muscle atrophy and joint deformities in haemopliliac patients. ÖZET Amaç: Hemofili tekrarlayan kanama ataklarına sekonder olarak kas-iskelet sorunlarına neden olmaktadır. Bu çalışmada, su içi egzersizlerinin, kas ve eklem problemleri olan şiddetli hemofili A hastalarında etkilerinin araştırılması amaçlanmıştır. Materyal ve Metod: Proflaksi alan, şiddetli hemofili A hastası (n=11) düzenli olarak egzersiz uygulamasına alınmıştır. Bulgular: Çalışmaya katılan hastaların, sağ bacaklarında üst bacak, orta bacak ve calf çevrelerinde (42.0 ± 2.4, 43.0 ±2.1 ; 37.1 ±1.9, 39.0 ±1.8; 28.1 ± 1.4, 28.9 ±1.3 respectively) (mean ± SE), sol bacaklarında üst ve orta bacak çevrelerinde (36.9 ± 1.5 , 38.9 ± 1.5 ; 41.2 ± 2.2 , 42.9 ± 2) egzersiz öncesi değerlerine göre istatistiksel olarak anlamlı

Research paper thumbnail of The effects of boron administration on plasma leptin and lactate levels in ovariectomized rats which had acute swimming exercise

Neuro endocrinology letters, 2008

The aim of this study was to investigate the effects of intraperitoneal (IP) boron administration... more The aim of this study was to investigate the effects of intraperitoneal (IP) boron administration on leptin and lactate levels in swimming exercise in ovariectomized rats. Eighty adult female rats were equally allocated into 8 groups. Group 1; Control, Group 2; exercise control, Group 3; ovariectomized control, Group 4; Boron control (2 mg/kg/day), Group 5; ovariectomized plus exercise, Group 6; exercise plus IP boron, Group 7; ovariectomized and exercise group plus IP boron, Group 8; ovariectomized plus boron. Leptin levels in Group 1 were higher than those in Groups 2, 3 and 4 and lower than those in groups 5, 6, 7 and 8 (p<0.01). Leptin levels were higher in Group 3 than in Groups 2 and 4 and significantly lower than in all other groups (p<0.01). Lactate levels in Groups 2 and 4 were higher than those in all other groups (p<0.01). Lactate levels were significantly lower in Groups 1, 3, 5 and 8 than in all other groups (p<0.01). Lactate levels in Groups 6 and 7 were si...

Research paper thumbnail of FSFV conference CONTEMPORARY CHALLENGES IN SPORT PHYSICAL EXERCISING ACTIVE LIFESTYLE Book of Abstracts 2021

EFFECT OF REPEATED SPRINT TRAINING AND DETRAINING ON AEROBIC AND ANAEROBIC PERFORMANCES, 2021

Introduction Repeated sprint training (RST) is used by many sport professionals and characterized... more Introduction Repeated sprint training (RST) is used by many sport professionals and characterized by maximal intensity sprints with short recovery durations (Bishop et al., 2011). The sprint number is generally 10-20 maximal sprint or shuttle sprints with under 10 sec. In this situation, there has been investigated the increase of VO2max and some aerobic enzymes in addition to increase of the activity of anaerobic performance and enzymes (Dawson et al., 1998). It has been known to many training adaptations decreased in detraining period. To our knowledge no studies have focused on the RST and detraining periods on aerobic and anaerobic performances. Therefore, the aim of this study was to examine the RST and detraining on aerobic and anaerobic performances.
Method Twenty-five recreationally active individuals volunteered to take part in the experiment. The subjects were (11 male and 14 female) students in Selçuk University Recreation Department. None of the subjects were specifically attended regularly training program. The subjects were matched into 2 group, training group (n=14, 61.71±11,30 kg body mass, 168.30±7.65 cm height, 41.27±6.71 ml/kg/min VO2max) and control group (n=11, 57.91±9.47 kg body weight, 166.36±5.98 cm height, 39.92± 3.96 ml/kg/min VO2max). The study consisted of preliminary measures, training, post training measures and detraining periods. Detraining period was determined as 8 weeks. The training group was applied a familiarization week, 4-week RST, 4th week detraining and 8th week detraining measures respectively. Each training contained maximal 20 m RST with 30 sec. active recovery. The sprint number was increased gradually. Repeated measures of ANOVA were used for analysis of VO2max (2×4; group×time) and anaerobic power (2×2; group×time).
Results and discussion
The effect of the group factor on VO2max was not significant (F= 2.59; p>0.05). However, the effect of time factor on the VO2max values during experiment period was significant (F= 18.27; p<0.05). The results showed significant group×time interactions for VO2max (F=13.92, p<0.05). Following RST and 4th detraining, VO2max was higher in training group significantly (p<0.05). However, in 8th detraining week, there was not significant difference between groups (p>0.05). The peak power values during Wingate test increased post training period in training group and the time effect was significant (F=10.91; p<0.05).
Conclusion
As well as regular training results any adaptations in organism, the detraining period leads to reversal of the training adaptations in VO2max. In this study the training adaptations disappeared in 8th week during detraining period.
Keywords: aerobic enzymes, anaerobic capacity, maximum oxygen consumption
References
Bishop, D., Girard, O., Mendez-Villanueva (2011). Repeated -sprint ability- Part II, Sports Medicine 41:741-756.
Dawson, B., Fitzsimons M., Green S., Goodman, C., Carey, M., Cole K (1998). Changes in performance, muscle metabolites, enzymes and fibre types after short sprint training. Eur J Apl. Phys.78:163-169.

Research paper thumbnail of FSFV conference CONTEMPORARY CHALLENGES IN SPORT PHYSICAL EXERCISING ACTIVE LIFESTYLE Book of Abstracts 2021

Introduction Repeated sprint training (RST) is used by many sport professionals and characterized... more Introduction Repeated sprint training (RST) is used by many sport professionals and characterized by maximal intensity sprints with short recovery durations (Bishop et al., 2011). The sprint number is generally 10-20 maximal sprint or shuttle sprints with under 10 sec. In this situation, there has been investigated the increase of VO2max and some aerobic enzymes in addition to increase of the activity of anaerobic performance and enzymes (Dawson et al., 1998). It has been known to many training adaptations decreased in detraining period. To our knowledge no studies have focused on the RST and detraining periods on aerobic and anaerobic performances. Therefore, the aim of this study was to examine the RST and detraining on aerobic and anaerobic performances.
Method Twenty-five recreationally active individuals volunteered to take part in the experiment. The subjects were (11 male and 14 female) students in Selçuk University Recreation Department. None of the subjects were specifically attended regularly training program. The subjects were matched into 2 group, training group (n=14, 61.71±11,30 kg body mass, 168.30±7.65 cm height, 41.27±6.71 ml/kg/min VO2max) and control group (n=11, 57.91±9.47 kg body weight, 166.36±5.98 cm height, 39.92± 3.96 ml/kg/min VO2max). The study consisted of preliminary measures, training, post training measures and detraining periods. Detraining period was determined as 8 weeks. The training group was applied a familiarization week, 4-week RST, 4th week detraining and 8th week detraining measures respectively. Each training contained maximal 20 m RST with 30 sec. active recovery. The sprint number was increased gradually. Repeated measures of ANOVA were used for analysis of VO2max (2×4; group×time) and anaerobic power (2×2; group×time).
Results and discussion
The effect of the group factor on VO2max was not significant (F= 2.59; p>0.05). However, the effect of time factor on the VO2max values during experiment period was significant (F= 18.27; p<0.05). The results showed significant group×time interactions for VO2max (F=13.92, p<0.05). Following RST and 4th detraining, VO2max was higher in training group significantly (p<0.05). However, in 8th detraining week, there was not significant difference between groups (p>0.05). The peak power values during Wingate test increased post training period in training group and the time effect was significant (F=10.91; p<0.05).
Conclusion
As well as regular training results any adaptations in organism, the detraining period leads to reversal of the training adaptations in VO2max. In this study the training adaptations disappeared in 8th week during detraining period.
Keywords: aerobic enzymes, anaerobic capacity, maximum oxygen consumption
References
Bishop, D., Girard, O., Mendez-Villanueva (2011). Repeated -sprint ability- Part II, Sports Medicine 41:741-756.
Dawson, B., Fitzsimons M., Green S., Goodman, C., Carey, M., Cole K (1998). Changes in performance, muscle metabolites, enzymes and fibre types after short sprint training. Eur J Apl. Phys.78:163-169.