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Papers by Huseyin Sahin Uysal
Strength & Conditioning Journal
Combined strength training is performed with a combination of plyometric exercises and traditiona... more Combined strength training is performed with a combination of plyometric exercises and traditional strength exercises . This training method with different protocols (such as complex training or contrast training) is used to develop vertical jump performance in basketball. Combined strength training is based on the theory of PAP, and physiological changes in the nervous musculature allow for acute performance enhancement . Included and excluded studies were determined according to PICOS criteria. The search was performed on the electronic databases of Google Scholar, PubMed, and Scopus between September 1-7, 2022. The effect of combined strength training on vertical jump performance in basketball was compared with different training methods and as a result, a moderate effect was found in favor of combined strength training (ES=1.11, (95%CI 0.63-1.60), I2= 82%). As a result of systematic review and meta-analysis, it has been found that combined strength training applied in different forms in basketball is superior to other training methods in improving vertical jump performance. On the other hand, there is no superiority between the combined strength training protocols. Athletic performance specialists may improve jump performance by combining plyometric and traditional strength exercises in the same training season.
European Journal of Human Movement, 2023
We aimed to evaluate the effect of joint distraction exercises with elastic band as a warm-up met... more We aimed to evaluate the effect of joint distraction exercises with elastic band as a warm-up method versus an only standard warm-up on lower-body maximal strength performance in male bodybuilders and to determine possible moderator variables affecting performance. In the study, seventeen male bodybuilders who met the inclusion criteria were evaluated. The bodybuilders performed two sets of four joint distraction exercises with 30 seconds of rest following the standardized warm-up versus the standardized warm-up only. The maximal strength performance of bodybuilders was measured with an interval of 96 hours. Joint distraction exercises with the elastic band following the standardized warm-up moderately increased lower-body maximal strength performance of the bodybuilders (p = 0.00; Cohen'd = 0.45, 95%CI = 0.30-0.60). In addition, age (p = 0.34, β = 0.03), height (p = 0.92, β = 0.00), body weight (p = 0.61, β = 0.00), training experience (p = 0.66, β =-0.02) and body mass index (p = 0.55, β = 0.01) were not moderator variables for this training method. Our study showed that joint distraction exercises with elastic bands could acutely improve lower-body maximal strength performance in male bodybuilders regardless of anthropometric characteristics. Practitioners and coaches may prefer this training method before strength training to increase the strength performance of their athletes.
Journal of Human Kinetics, 2023
This study aimed to assess the validity, reliability, and sensitivity of mobile applications for ... more This study aimed to assess the validity, reliability, and sensitivity of mobile applications for assessing change-of-direction speed (CODS) performance. Thirty college athletes performed two Illinois CODS tests during one session. Assessments were carried out simultaneously using six devices (the CODTimer app, Seconds Count app, StopwatchCamera app, two analog stopwatches, and timing gates). Validity analyses included Pearson's product-moment correlation analysis, a linear regression model, and Bland‒Altman plots. Reliability analyses included the intraclass correlation coefficient (ICC), the coefficient of variation (CV%), and the paired-sample t test. Sensitivity analyses included the typical error and smallest worthwhile change (SWC). The results showed that validity, reliability, and sensitivity values were higher for the CODTimer app (r=0.99, R2=0.99, mean bias=-0.03±0.10, CV%=3.21, ICC=0.89, SWC rating: good, p=0.84) and the Seconds Count a pp(r=0.99, R2=0.99, mean bias =-0.03±0.08, CV%=3.28, ICC=0.88, SWC rating: good, p=0.84) relative to the StopwatchCamera app (r=0.98, R2=0.97, mean bias =-0.11±0.22, CV%=3.43, ICC=0.86, SWC rating: marginal, p=0.10), Analog Stopwatch 1(r=0.98, R2=0.96, mean bias =-0.09±0.42, CV%= 2.95, ICC =0.90, SWC rating: good, p=0.91), and Analog Stopwatch 2 (r=0.99, R2=0.97, mean bias = -0.12 ±0.88, CV%=3.51, ICC=0.87, SWC rating: marginal, p=0.96). In conclusion, compared to timing gates, the CODTimer app and Seconds Count app provided lower measurement bias and higher sensitivity for assessing CODS performance.
Antrenörlerin sporcular üzerindeki tutumu sporcu performansını etkileyen önemli bir faktör olabil... more Antrenörlerin sporcular üzerindeki tutumu sporcu performansını etkileyen önemli bir faktör olabilir. Bu çalışmanın amacı "Development and initial validation of athletes' perceptions of coach-related critical attitudes scale" ölçeğinin Türkçeye uyarlanarak geçerlik ve güvenirliğinin değerlendirilmesidir. Çalışmanın örneklem grubunu bireysel ve takım sporlarında müsabık toplam 183 sporcu oluşturmuştur. Çalışmanın istatistiksel analizleri geçerlik ve güvenirlik olarak iki aşamada gerçekleştirilmiştir. Ölçek geçerliği takip eden analizlere göre değerlendirilmiştir; (i) normallik analizi, (ii) dil geçerliliği, (iii) çalışmanın geçerliliğine yönelik doğrulayıcı faktör analizi, (iv) ıraksak ve yakınsak geçerlik analizleri. Ölçeğin güvenirliği (i) madde analizi, (ii) CR, (iii) Cronbach Alpha iç tutarlılık katsayısı ve (iv) maddeler arası korelasyon analizleri ile incelenmiştir. Çalışmanın dil geçerliliği işlemleri sonucunda Türkçe ve orjinal dil (İngilizce) arasında pozitif derecede istatistiksel olarak anlamlı bir ilişki tespit edilmiştir (p= ,87). Doğrulayıcı faktör analizi sonuçları geçerlik açısından uyum iyiliğini işaret etmiştir Doğrulayıcı faktör analizi sonuçları, CMİNdf =2,591, RMSEA=80, GFI,959, TLI=,946, IFI=,972 CFI=,972 olarak bulunmuştur. Iraksak ve yakınsak geçerlik analizleri sonucunda ulaşılan değerler ölçeğin geçerlilik açısından uygun olduğunu göstermiştir (Ave=0,57; √Ave= 0,75; Msv= 0,51; Asv= 0,24). Çalışmanın Cronbach alpha iç tutarlılık katsayısı ve CR değerleri yüksek bir güvenilirliği ifade etmiştir (Cronbach alpha iç tutarlılık katsayısı= ,87; CR= ,90). Benzer şekilde madde analizi ve madde toplam korelasyonu analizleri bu çalışmanın güvenilir olduğunu belirtmiştir (Alt sınır=,466; Üst sınır= ,78). Alt ve üst gruplar arasında ise istatistiksel olarak anlamlı farklılıklar tespit edilmiştir (p<0,05). Sonuç olarak ölçeğin Türkçeye geçerli ve güvenilir olarak uyarlandığı anlaşılmıştır. Alan uzmanları ve uygulayıcılar sporcuların antrenörlerine yönelik tutumlarını bu ölçek aracılığıyla geçerli ve güvenilir olarak değerlendirebilir.
Plyometric training is a training method that includes a stretch-shortening cycle and is designed... more Plyometric training is a training method that includes a stretch-shortening cycle and is designed with exercises that require explosiveness. Sports science has studied this training method for many years, and a great deal of research has been done at various levels. This study aims to evaluate the research articles on plyometric training in the field of sports sciences with bibliometric data and to reach specific norm values within the study's limitations. The study was carried out with a bibliometric analysis design, one of the quantitative research methods, and the Web of Science database was used as a data collection tool. The database related to the study; was included in the category of sports sciences; 358 research articles scanned in any of the SSCI, ESCI, or SCI-Expanded indexes were had. Statistical analyzes of the study were performed with the programming language R (ver. 4.2.2), and the biblioshiny function was used. The findings of this study revealed that the most influential researcher on the subject is Rodrigo Ramirez Campillo, and the journal that most accepts plyometric training research is the Journal of Strength and Conditioning Research. However, there is a need to examine the effects of plyometric training on agility, change of direction, and sprint performance, to conduct more research on children and youth and to address the issue from different perspectives, especially on football players. As a result, the findings may be necessary for researchers and field experts who will research the subject of plyometric training. Furthermore, the study's findings can offer an idea to the researchers studying the topic.
Combined strength training is performed with a combination of plyometric exercises and traditiona... more Combined strength training is performed with a combination of plyometric exercises and traditional strength exercises . This training method with different protocols (such as complex training or contrast training) is used to develop vertical jump performance in basketball. Combined strength training is based on the theory of PAP, and physiological changes in the nervous musculature allow for acute performance enhancement . Included and excluded studies were determined according to PICOS criteria. The search was performed on the electronic databases of Google Scholar, PubMed, and Scopus between September 1-7, 2022. The effect of combined strength training on vertical jump performance in basketball was compared with different training methods and as a result, a moderate effect was found in favor of combined strength training (ES=1.11, (95%CI 0.63-1.60), I2= 82%). As a result of systematic review and meta-analysis, it has been found that combined strength training applied in different forms in basketball is superior to other training methods in improving vertical jump performance. On the other hand, there is no superiority between the combined strength training protocols. Athletic performance specialists may improve jump performance by combining plyometric and traditional strength exercises in the same training season.
Propósitos y Representaciones, 2021
Many factors determine success in football. But the most important of these are the physical and ... more Many factors determine success in football. But the most important of these are the physical and physiological variables that determine the performance of football players. Meeting these physical and physiological needs is also based on training methods prepared following branch-specific neural, muscular, and metabolic parameters. In football, for some reason, sufficient time cannot be allocated to the biomotor properties that need to be developed. Different methods are put forward to eliminate the obstacles that occur. One of these methods, which was discussed in the educational system of this field, was the idea of combining different strength training. Although there are different designs on these training in the literature, the most commonly studied methods are complex and contrast training. Complex and contrast training is based on the theory of post-activation potentiation, although there are minor differences between them. These methods generally include plyometric exercise followed by a severe strength exercise. For this reason, contrast and complex training are considered by some researchers as similar training methods, while studies that claim otherwise are also found in the literature. Discussions continue in terms of training protocols and training terms which are used. These methods are investigated by experts with many different protocols when the literature is examined. Confusion in the literature also affects studies on football. Complex and contrast training protocols in football that are used to define the purpose of this study, to examine the effect on player performance, on methods to deal with developments and discussions with existing methods to evaluate the positive and negative aspects to provide a critical perspective on sensible recommendations
Spor Bilimleri Araştırmaları Dergisi , 2021
Günümüzde üniversiteler bilimsel faaliyetlerin merkezi olarak görülmekte ve bilimsel alandaki gel... more Günümüzde üniversiteler bilimsel faaliyetlerin merkezi olarak görülmekte ve bilimsel alandaki gelişmeler sonucunda multidisipliner bilim dalları ortaya çıkmaktadır. Bu çalışmanın amacı ise tarihi uzun yıllara dayanmasına rağmen gelişimini sürdüren ve pek çok disiplinden etkilenerek alt disiplinlere ayrılan Beden Eğitimi ve Spora ilişkin doktora tezlerini bibliyometrik analiz ile değerlendirmektir. Çalışma kapsamında; beden eğitimi ve öğretim kelimelerini tez başlığında içeren araştırmalara ulaşmak için veri toplama aracı olarak Ulusal Tez Merkezi kullanılmıştır. Bu kapsamda 2007-2020 yılları arasında beden eğitimi ve öğretim anahtar kelimelerini tez başlığında içeren 26 doktora tezi araştırmanın örneklemini oluşturmuştur. Tezlerin yıllara göre dağılımı, cinsiyet dağılımı, danışman unvanları, kullanılan kaynakça sayısı ve türü, anahtar kelimelerin analizi, tezlerin yapıldığı üniversiteler, enstitüler, ana bilim dalları ve konu alanları, katılımcı türleri ve özellikleri araştırmanın değişkenlerini oluşturmuş; araştırmanın veri analizi için ise tanımlayıcı istatistiklerden yüzde ve frekans kullanılmıştır. Araştırma sonucunda doktora tezlerinin ağırlıklı olarak erkekler tarafından yapıldığı (n=18, 69,2%), en çok doktora tezinin Gazi Üniversitesinde yapıldığı, enstitü bazında en fazla doktora tezinin Sağlık Bilimleri Enstitüsünde (n=11, 42,3%) yapıldığı ve anabilim dalı olarak da en fazla doktora tezinin Beden Eğitimi ve Spor Anabilim Dalı'nda (n=11, 38,5%) yapıldığı saptanmıştır. Ayrıca çalışmanın bulgularından hareketle, beden eğitimi ve spor alanındaki araştırmacıların nicel analiz yapmaya eğilimli oldukları (%71,3) ve bilim dalının multidisipliner yapısından dolayı beden eğitimi ve öğretimi anahtar kelimeleri ile eğitim biliminden spor yönetimine kadar geniş kapsamda çalışmalar yapılabildiği sonucuna varılmıştır.
Nowadays, universities are seen as the centre of scientific activities and multidisciplinary branches of science emerge as a result of the developments in the scientific field. This study aims to evaluate the doctoral theses on Physical Education and Sports, which have been developing and divided into sub-disciplines by being influenced by many disciplines, with bibliometric analysis. Scope of work; The National Thesis Center was used as a data collection tool to reach studies that include physical education and teaching words in the thesis title. In this context, 26 doctoral dissertations that include the keywords of physical education and teaching in the thesis title between 2007 and 2020 constituted the sample of the study. The distribution of theses by years, gender distribution, advisor titles, number and type of bibliography used, analysis of keywords, universities, institutes, departments and subject areas, participant types and characteristics constituted the variables of the study; Percentage and frequency from descriptive statistics were used for data analysis of the study. As a result of the research, it was found that doctoral dissertations were mainly made by men (n = 18, 69.2%), most doctoral dissertations were made at Gazi University, the highest number of doctoral dissertations on an institute basis was made in the Institute of Health Sciences (n = 11, 42.3%) and the department It was determined that most of the doctoral dissertations were made in the Department of Physical Education and Sports (n = 11, 38,5%). In addition, based on the findings of the study, it was concluded that researchers in the field of physical education and sports tend to do quantitative analysis (71.3%) and that due to the multidisciplinary nature of the branch of science, a wide range of studies from educational science to sports management can be done with the keywords of physical education and training.
Books by Huseyin Sahin Uysal
Gece Kitaplığı, 2020
This book chapter examines the positive and negative effects of carbohydrate consumption time on ... more This book chapter examines the positive and negative effects of carbohydrate consumption time on performance and aims to determine the optimal consumption range and optimal consumption amount.
Gece Kitaplığı, 2020
Bu kitap bölümü karbonhidratın performansa etkisini ele almakta olup bu etki karbonhidratın tüket... more Bu kitap bölümü karbonhidratın performansa etkisini ele almakta olup bu etki karbonhidratın tüketim zamanına, yapısına, formuna, glisemik indeks değerlerine ve farklı gıda takviyeleri ile etkileşimine göre incelenmiştir.
This book chapter deals with the effect of carbohydrates on performance and this effect is examined according to the time of consumption, structure, form, glycemic index values of carbohydrates and their interaction with different food supplements.
Bu kitap bölümü, pliometrik antrenmanın tarihsel gelişimini ve ilgili adaptasyon süreçleriyle hen... more Bu kitap bölümü, pliometrik antrenmanın tarihsel gelişimini ve ilgili adaptasyon süreçleriyle hentbol ile ilişkisini rapor etmektedir. Kitap bölümünde hentbolda pliometrik antrenman uygulamaları ve yapılan çalışmalar detaylı olarak incelenmiştir.
This book chapter reports the historical development of plyometric training and its relationship to handball with associated adaptation processes. In the book chapter, plyometric training practices and studies in handball are examined in detail.
Thesis Chapters by Huseyin Sahin Uysal
Hentbol en hızlı oynanan takım sporlarından birisi olup, oyun içerisinde birçok patlayıcı hareket... more Hentbol en hızlı oynanan takım sporlarından birisi olup, oyun içerisinde birçok patlayıcı hareket kalıbını barındırmaktadır. Sıçrama, çeviklik ve sprint gibi patlayıcı hareket kalıplarının geliştirilmesinde ise kuvvet antrenmanlarından faydalanılmaktadır. Kullanılan bu kuvvet antrenmanlarından biri pliometrik antrenmanlar olup, yapılan araştırmalarda hentbolda sprint performansını geliştirdiği literatürde yer almaktadır. Bu araştırmanın amacı, hentbolda pliometrik antrenmanların sprint performansı üzerine genel etki seviyesini değerlendirmek, performansa etki ettiği düşünülen modaretör değişkenleri tespit etmek ve bireysel çalışmalardan elde edilen bulgular ile genel bir yargıya ulaşmaktır. Bu amaca ulaşmak için araştırmanın modelini sistematik derleme ve meta analiz yaklaşımı oluşturmaktadır. Araştırmanın sistematik derleme aşamasında Google Scholar, Pubmed, Web Of Science ve Scopus veri tabanları aracılığıyla literatür taranmış, tarama sonucunda yanlılık riskleri ve metodolojik kalite değerlendirmesi için TESTEX ölçeği kullanılmış, kalite standartlarını sağlayan 13 çalışma araştırmaya dahil edilmiştir. Araştırmanın meta analiz aşaması Revman (Ver. 5.4.1), R (Ver. 4.1.0) ve SPSS (Ver. 2.0) paket programlarıyla gerçekleştirilmiştir. Bu aşamada genel etki büyüklüğünün tahmini için rastgele etkiler modeli, çalışmaların bireysel etki büyüklüğünün tahmini için ise Hedges’g indeksi %95 güven aralığı ile kullanılmıştır. Yapılan analizler sonucunda hentbol antrenmanına ek olarak yapılan pliometrik antrenmanın farklı mesafelerdeki sprint performansına orta ve çok büyük seviyeli etki sağladığı saptanmıştır. Orta seviyeli etkilerden en küçüğü 20 metre sprint performansında tespit edilmiş (EB=0,92[0,12-1,71], Z=2,27 [p= 0,02]), pliometrik antrenmanın en büyük etki sağladığı sprint mesafesi ise 30 metre olmuştur (EB=2,11[1,02-3,33], Z=3,70 [p= 0,0002]). Pliometrik antrenmanın kontrol grubuna karşı sağladığı etki farklı kuvvet antrenmanlarına karşı tespit edilememiştir. Modaretör analizleri sonucunda listelenen alt gruplar diğer alt gruplara göre sprint gelişiminde avantaj sağlamıştır; 10 metre sprint için >6 hafta üstü (EB=1,22), 30 metre sprintte ise 2 gün (EB=2,53), ≤16 yaş ve altı (EB=3,77), ≤98 ve altı sıçrama (EB=5,38), >6 hafta üstü (EB=2,56). Ancak alt gruplar arasında bulunan bu anlamlı etkiye diğer sprint mesafelerinde rastlanmamıştır. Araştırmaya dahil edilen hiçbir çalışma pliometrik antrenman sonrasında sakatlık bildirmemiştir. Sonuç olarak, hentbol antrenmanına ek olarak yapılacak pliometrik antrenmanların sprint gelişimi için etkili ve güvenilir bir yöntem olduğu anlaşılmıştır.
Handball is one of the fastest-played team sports and contains many explosive movement patterns in the game. Strength training is used to develop explosive movement patterns such as jumping, agility and sprinting. One of these strength training used is plyometric training, and it is stated in the literature that it improves sprint performance in handball. The aim of this research is to evaluate the general effect level of plyometric training on sprint performance in handball, to determine the moderator variables that are thought to affect performance, and to reach a general judgment with the findings obtained from individual studies. In order to achieve this aim, the model of the research is a systematic compilation and meta-analysis approach. In the systematic compilation phase of the research, the literature was searched through Google Scholar, Pubmed, Web Of Science and Scopus databases, the TESTEX scale was used for the risk of bias and methodological quality evaluation as a result of the scanning, and 13 studies that met the quality standards were included in the research. The meta-analysis phase of the research was carried out with Revman (Ver. 5.4.1), R (Ver. 4.1.0) and SPSS (Ver. 2.0) package programs. At this stage, the random-effects model was used to estimate the overall effect size, and the Hedges'g index with a 95% confidence interval was used to estimate the individual effect size of the studies. As a result of the analyses, it was determined that plyometric training and handball training had a moderate to very large effect on sprint performance at different distances. The smallest of the moderate effects was found in the 20-meter sprint performance (EB=0.92[0.12-1.71], Z=2.27 [p= 0.02]), and the sprint distance in which plyometric training had the greatest effect. It was 30 meters (EB=2.11[1.02-3.33], Z=3.70 [p= 0.0002]). The effect of plyometric training against the control group could not be determined against different strength training. The subgroups listed as a result of the moderator analyzes had an advantage over the other subgroups in sprint development; >6 weeks for 10m sprint (EB=1.22), 2 days for 30m sprint (EB=2.53), ≤16 years and under (EB=3.77), ≤98 and below jump (EB) =5.38)), >6 weeks (EB=2.56). However, this significant effect between the subgroups was not found in other sprint distances. No study included in the study reported injury after plyometric training. As a result, it has been determined that plyometric training to be done in addition to handball training is an effective and reliable method for sprint development.
Strength & Conditioning Journal
Combined strength training is performed with a combination of plyometric exercises and traditiona... more Combined strength training is performed with a combination of plyometric exercises and traditional strength exercises . This training method with different protocols (such as complex training or contrast training) is used to develop vertical jump performance in basketball. Combined strength training is based on the theory of PAP, and physiological changes in the nervous musculature allow for acute performance enhancement . Included and excluded studies were determined according to PICOS criteria. The search was performed on the electronic databases of Google Scholar, PubMed, and Scopus between September 1-7, 2022. The effect of combined strength training on vertical jump performance in basketball was compared with different training methods and as a result, a moderate effect was found in favor of combined strength training (ES=1.11, (95%CI 0.63-1.60), I2= 82%). As a result of systematic review and meta-analysis, it has been found that combined strength training applied in different forms in basketball is superior to other training methods in improving vertical jump performance. On the other hand, there is no superiority between the combined strength training protocols. Athletic performance specialists may improve jump performance by combining plyometric and traditional strength exercises in the same training season.
European Journal of Human Movement, 2023
We aimed to evaluate the effect of joint distraction exercises with elastic band as a warm-up met... more We aimed to evaluate the effect of joint distraction exercises with elastic band as a warm-up method versus an only standard warm-up on lower-body maximal strength performance in male bodybuilders and to determine possible moderator variables affecting performance. In the study, seventeen male bodybuilders who met the inclusion criteria were evaluated. The bodybuilders performed two sets of four joint distraction exercises with 30 seconds of rest following the standardized warm-up versus the standardized warm-up only. The maximal strength performance of bodybuilders was measured with an interval of 96 hours. Joint distraction exercises with the elastic band following the standardized warm-up moderately increased lower-body maximal strength performance of the bodybuilders (p = 0.00; Cohen'd = 0.45, 95%CI = 0.30-0.60). In addition, age (p = 0.34, β = 0.03), height (p = 0.92, β = 0.00), body weight (p = 0.61, β = 0.00), training experience (p = 0.66, β =-0.02) and body mass index (p = 0.55, β = 0.01) were not moderator variables for this training method. Our study showed that joint distraction exercises with elastic bands could acutely improve lower-body maximal strength performance in male bodybuilders regardless of anthropometric characteristics. Practitioners and coaches may prefer this training method before strength training to increase the strength performance of their athletes.
Journal of Human Kinetics, 2023
This study aimed to assess the validity, reliability, and sensitivity of mobile applications for ... more This study aimed to assess the validity, reliability, and sensitivity of mobile applications for assessing change-of-direction speed (CODS) performance. Thirty college athletes performed two Illinois CODS tests during one session. Assessments were carried out simultaneously using six devices (the CODTimer app, Seconds Count app, StopwatchCamera app, two analog stopwatches, and timing gates). Validity analyses included Pearson's product-moment correlation analysis, a linear regression model, and Bland‒Altman plots. Reliability analyses included the intraclass correlation coefficient (ICC), the coefficient of variation (CV%), and the paired-sample t test. Sensitivity analyses included the typical error and smallest worthwhile change (SWC). The results showed that validity, reliability, and sensitivity values were higher for the CODTimer app (r=0.99, R2=0.99, mean bias=-0.03±0.10, CV%=3.21, ICC=0.89, SWC rating: good, p=0.84) and the Seconds Count a pp(r=0.99, R2=0.99, mean bias =-0.03±0.08, CV%=3.28, ICC=0.88, SWC rating: good, p=0.84) relative to the StopwatchCamera app (r=0.98, R2=0.97, mean bias =-0.11±0.22, CV%=3.43, ICC=0.86, SWC rating: marginal, p=0.10), Analog Stopwatch 1(r=0.98, R2=0.96, mean bias =-0.09±0.42, CV%= 2.95, ICC =0.90, SWC rating: good, p=0.91), and Analog Stopwatch 2 (r=0.99, R2=0.97, mean bias = -0.12 ±0.88, CV%=3.51, ICC=0.87, SWC rating: marginal, p=0.96). In conclusion, compared to timing gates, the CODTimer app and Seconds Count app provided lower measurement bias and higher sensitivity for assessing CODS performance.
Antrenörlerin sporcular üzerindeki tutumu sporcu performansını etkileyen önemli bir faktör olabil... more Antrenörlerin sporcular üzerindeki tutumu sporcu performansını etkileyen önemli bir faktör olabilir. Bu çalışmanın amacı "Development and initial validation of athletes' perceptions of coach-related critical attitudes scale" ölçeğinin Türkçeye uyarlanarak geçerlik ve güvenirliğinin değerlendirilmesidir. Çalışmanın örneklem grubunu bireysel ve takım sporlarında müsabık toplam 183 sporcu oluşturmuştur. Çalışmanın istatistiksel analizleri geçerlik ve güvenirlik olarak iki aşamada gerçekleştirilmiştir. Ölçek geçerliği takip eden analizlere göre değerlendirilmiştir; (i) normallik analizi, (ii) dil geçerliliği, (iii) çalışmanın geçerliliğine yönelik doğrulayıcı faktör analizi, (iv) ıraksak ve yakınsak geçerlik analizleri. Ölçeğin güvenirliği (i) madde analizi, (ii) CR, (iii) Cronbach Alpha iç tutarlılık katsayısı ve (iv) maddeler arası korelasyon analizleri ile incelenmiştir. Çalışmanın dil geçerliliği işlemleri sonucunda Türkçe ve orjinal dil (İngilizce) arasında pozitif derecede istatistiksel olarak anlamlı bir ilişki tespit edilmiştir (p= ,87). Doğrulayıcı faktör analizi sonuçları geçerlik açısından uyum iyiliğini işaret etmiştir Doğrulayıcı faktör analizi sonuçları, CMİNdf =2,591, RMSEA=80, GFI,959, TLI=,946, IFI=,972 CFI=,972 olarak bulunmuştur. Iraksak ve yakınsak geçerlik analizleri sonucunda ulaşılan değerler ölçeğin geçerlilik açısından uygun olduğunu göstermiştir (Ave=0,57; √Ave= 0,75; Msv= 0,51; Asv= 0,24). Çalışmanın Cronbach alpha iç tutarlılık katsayısı ve CR değerleri yüksek bir güvenilirliği ifade etmiştir (Cronbach alpha iç tutarlılık katsayısı= ,87; CR= ,90). Benzer şekilde madde analizi ve madde toplam korelasyonu analizleri bu çalışmanın güvenilir olduğunu belirtmiştir (Alt sınır=,466; Üst sınır= ,78). Alt ve üst gruplar arasında ise istatistiksel olarak anlamlı farklılıklar tespit edilmiştir (p<0,05). Sonuç olarak ölçeğin Türkçeye geçerli ve güvenilir olarak uyarlandığı anlaşılmıştır. Alan uzmanları ve uygulayıcılar sporcuların antrenörlerine yönelik tutumlarını bu ölçek aracılığıyla geçerli ve güvenilir olarak değerlendirebilir.
Plyometric training is a training method that includes a stretch-shortening cycle and is designed... more Plyometric training is a training method that includes a stretch-shortening cycle and is designed with exercises that require explosiveness. Sports science has studied this training method for many years, and a great deal of research has been done at various levels. This study aims to evaluate the research articles on plyometric training in the field of sports sciences with bibliometric data and to reach specific norm values within the study's limitations. The study was carried out with a bibliometric analysis design, one of the quantitative research methods, and the Web of Science database was used as a data collection tool. The database related to the study; was included in the category of sports sciences; 358 research articles scanned in any of the SSCI, ESCI, or SCI-Expanded indexes were had. Statistical analyzes of the study were performed with the programming language R (ver. 4.2.2), and the biblioshiny function was used. The findings of this study revealed that the most influential researcher on the subject is Rodrigo Ramirez Campillo, and the journal that most accepts plyometric training research is the Journal of Strength and Conditioning Research. However, there is a need to examine the effects of plyometric training on agility, change of direction, and sprint performance, to conduct more research on children and youth and to address the issue from different perspectives, especially on football players. As a result, the findings may be necessary for researchers and field experts who will research the subject of plyometric training. Furthermore, the study's findings can offer an idea to the researchers studying the topic.
Combined strength training is performed with a combination of plyometric exercises and traditiona... more Combined strength training is performed with a combination of plyometric exercises and traditional strength exercises . This training method with different protocols (such as complex training or contrast training) is used to develop vertical jump performance in basketball. Combined strength training is based on the theory of PAP, and physiological changes in the nervous musculature allow for acute performance enhancement . Included and excluded studies were determined according to PICOS criteria. The search was performed on the electronic databases of Google Scholar, PubMed, and Scopus between September 1-7, 2022. The effect of combined strength training on vertical jump performance in basketball was compared with different training methods and as a result, a moderate effect was found in favor of combined strength training (ES=1.11, (95%CI 0.63-1.60), I2= 82%). As a result of systematic review and meta-analysis, it has been found that combined strength training applied in different forms in basketball is superior to other training methods in improving vertical jump performance. On the other hand, there is no superiority between the combined strength training protocols. Athletic performance specialists may improve jump performance by combining plyometric and traditional strength exercises in the same training season.
Propósitos y Representaciones, 2021
Many factors determine success in football. But the most important of these are the physical and ... more Many factors determine success in football. But the most important of these are the physical and physiological variables that determine the performance of football players. Meeting these physical and physiological needs is also based on training methods prepared following branch-specific neural, muscular, and metabolic parameters. In football, for some reason, sufficient time cannot be allocated to the biomotor properties that need to be developed. Different methods are put forward to eliminate the obstacles that occur. One of these methods, which was discussed in the educational system of this field, was the idea of combining different strength training. Although there are different designs on these training in the literature, the most commonly studied methods are complex and contrast training. Complex and contrast training is based on the theory of post-activation potentiation, although there are minor differences between them. These methods generally include plyometric exercise followed by a severe strength exercise. For this reason, contrast and complex training are considered by some researchers as similar training methods, while studies that claim otherwise are also found in the literature. Discussions continue in terms of training protocols and training terms which are used. These methods are investigated by experts with many different protocols when the literature is examined. Confusion in the literature also affects studies on football. Complex and contrast training protocols in football that are used to define the purpose of this study, to examine the effect on player performance, on methods to deal with developments and discussions with existing methods to evaluate the positive and negative aspects to provide a critical perspective on sensible recommendations
Spor Bilimleri Araştırmaları Dergisi , 2021
Günümüzde üniversiteler bilimsel faaliyetlerin merkezi olarak görülmekte ve bilimsel alandaki gel... more Günümüzde üniversiteler bilimsel faaliyetlerin merkezi olarak görülmekte ve bilimsel alandaki gelişmeler sonucunda multidisipliner bilim dalları ortaya çıkmaktadır. Bu çalışmanın amacı ise tarihi uzun yıllara dayanmasına rağmen gelişimini sürdüren ve pek çok disiplinden etkilenerek alt disiplinlere ayrılan Beden Eğitimi ve Spora ilişkin doktora tezlerini bibliyometrik analiz ile değerlendirmektir. Çalışma kapsamında; beden eğitimi ve öğretim kelimelerini tez başlığında içeren araştırmalara ulaşmak için veri toplama aracı olarak Ulusal Tez Merkezi kullanılmıştır. Bu kapsamda 2007-2020 yılları arasında beden eğitimi ve öğretim anahtar kelimelerini tez başlığında içeren 26 doktora tezi araştırmanın örneklemini oluşturmuştur. Tezlerin yıllara göre dağılımı, cinsiyet dağılımı, danışman unvanları, kullanılan kaynakça sayısı ve türü, anahtar kelimelerin analizi, tezlerin yapıldığı üniversiteler, enstitüler, ana bilim dalları ve konu alanları, katılımcı türleri ve özellikleri araştırmanın değişkenlerini oluşturmuş; araştırmanın veri analizi için ise tanımlayıcı istatistiklerden yüzde ve frekans kullanılmıştır. Araştırma sonucunda doktora tezlerinin ağırlıklı olarak erkekler tarafından yapıldığı (n=18, 69,2%), en çok doktora tezinin Gazi Üniversitesinde yapıldığı, enstitü bazında en fazla doktora tezinin Sağlık Bilimleri Enstitüsünde (n=11, 42,3%) yapıldığı ve anabilim dalı olarak da en fazla doktora tezinin Beden Eğitimi ve Spor Anabilim Dalı'nda (n=11, 38,5%) yapıldığı saptanmıştır. Ayrıca çalışmanın bulgularından hareketle, beden eğitimi ve spor alanındaki araştırmacıların nicel analiz yapmaya eğilimli oldukları (%71,3) ve bilim dalının multidisipliner yapısından dolayı beden eğitimi ve öğretimi anahtar kelimeleri ile eğitim biliminden spor yönetimine kadar geniş kapsamda çalışmalar yapılabildiği sonucuna varılmıştır.
Nowadays, universities are seen as the centre of scientific activities and multidisciplinary branches of science emerge as a result of the developments in the scientific field. This study aims to evaluate the doctoral theses on Physical Education and Sports, which have been developing and divided into sub-disciplines by being influenced by many disciplines, with bibliometric analysis. Scope of work; The National Thesis Center was used as a data collection tool to reach studies that include physical education and teaching words in the thesis title. In this context, 26 doctoral dissertations that include the keywords of physical education and teaching in the thesis title between 2007 and 2020 constituted the sample of the study. The distribution of theses by years, gender distribution, advisor titles, number and type of bibliography used, analysis of keywords, universities, institutes, departments and subject areas, participant types and characteristics constituted the variables of the study; Percentage and frequency from descriptive statistics were used for data analysis of the study. As a result of the research, it was found that doctoral dissertations were mainly made by men (n = 18, 69.2%), most doctoral dissertations were made at Gazi University, the highest number of doctoral dissertations on an institute basis was made in the Institute of Health Sciences (n = 11, 42.3%) and the department It was determined that most of the doctoral dissertations were made in the Department of Physical Education and Sports (n = 11, 38,5%). In addition, based on the findings of the study, it was concluded that researchers in the field of physical education and sports tend to do quantitative analysis (71.3%) and that due to the multidisciplinary nature of the branch of science, a wide range of studies from educational science to sports management can be done with the keywords of physical education and training.
Gece Kitaplığı, 2020
This book chapter examines the positive and negative effects of carbohydrate consumption time on ... more This book chapter examines the positive and negative effects of carbohydrate consumption time on performance and aims to determine the optimal consumption range and optimal consumption amount.
Gece Kitaplığı, 2020
Bu kitap bölümü karbonhidratın performansa etkisini ele almakta olup bu etki karbonhidratın tüket... more Bu kitap bölümü karbonhidratın performansa etkisini ele almakta olup bu etki karbonhidratın tüketim zamanına, yapısına, formuna, glisemik indeks değerlerine ve farklı gıda takviyeleri ile etkileşimine göre incelenmiştir.
This book chapter deals with the effect of carbohydrates on performance and this effect is examined according to the time of consumption, structure, form, glycemic index values of carbohydrates and their interaction with different food supplements.
Bu kitap bölümü, pliometrik antrenmanın tarihsel gelişimini ve ilgili adaptasyon süreçleriyle hen... more Bu kitap bölümü, pliometrik antrenmanın tarihsel gelişimini ve ilgili adaptasyon süreçleriyle hentbol ile ilişkisini rapor etmektedir. Kitap bölümünde hentbolda pliometrik antrenman uygulamaları ve yapılan çalışmalar detaylı olarak incelenmiştir.
This book chapter reports the historical development of plyometric training and its relationship to handball with associated adaptation processes. In the book chapter, plyometric training practices and studies in handball are examined in detail.
Hentbol en hızlı oynanan takım sporlarından birisi olup, oyun içerisinde birçok patlayıcı hareket... more Hentbol en hızlı oynanan takım sporlarından birisi olup, oyun içerisinde birçok patlayıcı hareket kalıbını barındırmaktadır. Sıçrama, çeviklik ve sprint gibi patlayıcı hareket kalıplarının geliştirilmesinde ise kuvvet antrenmanlarından faydalanılmaktadır. Kullanılan bu kuvvet antrenmanlarından biri pliometrik antrenmanlar olup, yapılan araştırmalarda hentbolda sprint performansını geliştirdiği literatürde yer almaktadır. Bu araştırmanın amacı, hentbolda pliometrik antrenmanların sprint performansı üzerine genel etki seviyesini değerlendirmek, performansa etki ettiği düşünülen modaretör değişkenleri tespit etmek ve bireysel çalışmalardan elde edilen bulgular ile genel bir yargıya ulaşmaktır. Bu amaca ulaşmak için araştırmanın modelini sistematik derleme ve meta analiz yaklaşımı oluşturmaktadır. Araştırmanın sistematik derleme aşamasında Google Scholar, Pubmed, Web Of Science ve Scopus veri tabanları aracılığıyla literatür taranmış, tarama sonucunda yanlılık riskleri ve metodolojik kalite değerlendirmesi için TESTEX ölçeği kullanılmış, kalite standartlarını sağlayan 13 çalışma araştırmaya dahil edilmiştir. Araştırmanın meta analiz aşaması Revman (Ver. 5.4.1), R (Ver. 4.1.0) ve SPSS (Ver. 2.0) paket programlarıyla gerçekleştirilmiştir. Bu aşamada genel etki büyüklüğünün tahmini için rastgele etkiler modeli, çalışmaların bireysel etki büyüklüğünün tahmini için ise Hedges’g indeksi %95 güven aralığı ile kullanılmıştır. Yapılan analizler sonucunda hentbol antrenmanına ek olarak yapılan pliometrik antrenmanın farklı mesafelerdeki sprint performansına orta ve çok büyük seviyeli etki sağladığı saptanmıştır. Orta seviyeli etkilerden en küçüğü 20 metre sprint performansında tespit edilmiş (EB=0,92[0,12-1,71], Z=2,27 [p= 0,02]), pliometrik antrenmanın en büyük etki sağladığı sprint mesafesi ise 30 metre olmuştur (EB=2,11[1,02-3,33], Z=3,70 [p= 0,0002]). Pliometrik antrenmanın kontrol grubuna karşı sağladığı etki farklı kuvvet antrenmanlarına karşı tespit edilememiştir. Modaretör analizleri sonucunda listelenen alt gruplar diğer alt gruplara göre sprint gelişiminde avantaj sağlamıştır; 10 metre sprint için >6 hafta üstü (EB=1,22), 30 metre sprintte ise 2 gün (EB=2,53), ≤16 yaş ve altı (EB=3,77), ≤98 ve altı sıçrama (EB=5,38), >6 hafta üstü (EB=2,56). Ancak alt gruplar arasında bulunan bu anlamlı etkiye diğer sprint mesafelerinde rastlanmamıştır. Araştırmaya dahil edilen hiçbir çalışma pliometrik antrenman sonrasında sakatlık bildirmemiştir. Sonuç olarak, hentbol antrenmanına ek olarak yapılacak pliometrik antrenmanların sprint gelişimi için etkili ve güvenilir bir yöntem olduğu anlaşılmıştır.
Handball is one of the fastest-played team sports and contains many explosive movement patterns in the game. Strength training is used to develop explosive movement patterns such as jumping, agility and sprinting. One of these strength training used is plyometric training, and it is stated in the literature that it improves sprint performance in handball. The aim of this research is to evaluate the general effect level of plyometric training on sprint performance in handball, to determine the moderator variables that are thought to affect performance, and to reach a general judgment with the findings obtained from individual studies. In order to achieve this aim, the model of the research is a systematic compilation and meta-analysis approach. In the systematic compilation phase of the research, the literature was searched through Google Scholar, Pubmed, Web Of Science and Scopus databases, the TESTEX scale was used for the risk of bias and methodological quality evaluation as a result of the scanning, and 13 studies that met the quality standards were included in the research. The meta-analysis phase of the research was carried out with Revman (Ver. 5.4.1), R (Ver. 4.1.0) and SPSS (Ver. 2.0) package programs. At this stage, the random-effects model was used to estimate the overall effect size, and the Hedges'g index with a 95% confidence interval was used to estimate the individual effect size of the studies. As a result of the analyses, it was determined that plyometric training and handball training had a moderate to very large effect on sprint performance at different distances. The smallest of the moderate effects was found in the 20-meter sprint performance (EB=0.92[0.12-1.71], Z=2.27 [p= 0.02]), and the sprint distance in which plyometric training had the greatest effect. It was 30 meters (EB=2.11[1.02-3.33], Z=3.70 [p= 0.0002]). The effect of plyometric training against the control group could not be determined against different strength training. The subgroups listed as a result of the moderator analyzes had an advantage over the other subgroups in sprint development; >6 weeks for 10m sprint (EB=1.22), 2 days for 30m sprint (EB=2.53), ≤16 years and under (EB=3.77), ≤98 and below jump (EB) =5.38)), >6 weeks (EB=2.56). However, this significant effect between the subgroups was not found in other sprint distances. No study included in the study reported injury after plyometric training. As a result, it has been determined that plyometric training to be done in addition to handball training is an effective and reliable method for sprint development.