Katarina Herodek - Academia.edu (original) (raw)
Papers by Katarina Herodek
Facta universitatis. Series physical education and sport, 2009
World Academy of Science, Engineering and Technology, International Journal of Sport and Exercise Sciences, Feb 25, 2016
ISBS - Conference Proceedings Archive, 2006
Sport Mont Journal, 2013
Vibration training belongs to the category of non-conventional methods of strength and power deve... more Vibration training belongs to the category of non-conventional methods of strength and power development in a short period of time. Mechanical vibrations which exert influence on the body can cause changes in gravitational conditions and thus initiate certain biological responses. Vibration stimuli are applied on the terminal point of the kinematic chain and thus can induce oscillations spreading through the muscle. Regardless of the type of the vibration training applied basic idea is to combine willing muscle activations and muscle stretching with the vibration stimulus. Vibration training utilizing Flexi-bar as an oscillating requisite belongs to the group of trainings where work-outs are performed with the additional vibrational stimulation. Vibrational stimulation of the muscle which is achieved on that occasion is induced by small frequences of 4,6 Hz. The purpose of this paper is to give a review of the contemporary reserach studies which investigate the effects of the utiliz...
Sport Mont Journal, 2009
On a sample of 18 students of the Faculty of sports and physical education, age 20 years ± 6 mont... more On a sample of 18 students of the Faculty of sports and physical education, age 20 years ± 6 months, divided into 3 groups (one control and two ekperimentalne) the as- sessment of upper extremity repetitive forces wos done. After three different protocols of warming up the motorical measurements gave us some results. The results obtained in the final measurement point to the positive effects of warming on the selected protocol level repetitive forces
Sport Mont Journal, 2008
On the sample of 21 students of Faculty of sports and physical education, age 21±6 months, measur... more On the sample of 21 students of Faculty of sports and physical education, age 21±6 months, measurement of standing long jump length by using test for explosive puissance estimation of lower extremities was effected. Test was recorded by digital video camera, and all conditions for application of video analyses i.e. kinematics methods were present. After digitalization, record was mistreated and prepared for further manipulating by using appropriate software for video analyses. Four different persons measured jump length (4 items). Metric characteristics of standing long jump showed high signifi cation level.
Sport Mont Journal, 2005
The problem of this research is a definition of the level of isometric muscular potential dependi... more The problem of this research is a definition of the level of isometric muscular potential depending on the angle of ankle. Different conditions of the plantar flexion are defined by means of the angle between the segments of the foot and the shine. A sample of the examinees is drawn from the PE male students, aged 20 (±6 months) who were involved in certain physical activities. Sample of variables is composed of: plantar flexion under the angle of 90, under the angle smaller than 90, and under the angle bigger than 90, as well as the body weight measured by digital scales. It is expected to gain the biggest maximal strength in plantar flexion in the ankle under the angle smaller than 90. It is recommended that the athletes during the training sessions for the development of the strength of the shine muscles (triceps surae) use compulsory support (costructed platform) under the front part of the foot.
Sport Mont Journal, 2013
The young gymnasts from seven cities in the Republic of Serbia at the age of 8-12 years was cover... more The young gymnasts from seven cities in the Republic of Serbia at the age of 8-12 years was covered with programmed gymnastic training 3-4 times a week for 90 minutes and the system of competition within the "C" program GSS. The case studies are examined relationships conative characteristics modified by Catel 16PF questionnaire with success in gymnastics, which is estimated to success in the competition in the "C" program of the Gymnastics Federation of Serbia. Using canonical correlation analysis of the data show that in the space of conative characteristics examined were found to be factors I-sensitivity-sharp temper, H- fearlessness and Q1- openness to change. Success in gymnastics was defined positive relations with disciplines Rings (.77), Pommel horse and Bar (.73) and Vault (.63). The hypothesis that says "conative characteristics have a positive relationship with success in gymnastics" can not be accepted because there is a statistically positi...
Proceeding book, 2017
The aim of this study was to determine if there are differences in the motor abilities of players... more The aim of this study was to determine if there are differences in the motor abilities of players relative to their position on the team. A total of 27 participants of the football club "Car Konstantin" from Nis, male, age 17 ± 6 months participated in this study. The players were divided into three different groups according to their positions: defense (n=9), midfield (n=9) and attack (n=9). The study examined the differences in the explosive strength of the lower extremities, speed and endurance between the players in relation to their position on the team. In order to carry out the research, the following tests were used: for strength-the countermovement jump, 30m sprint speed and for endurance-the shuttle run test. The obtained results were processed by the T-test for independent samples. After the overall analysis it was shown that there were no statistically significant differences in the motor abilities of the players in relation to their position on the team. The main contribution of this paper is to point to the necessity of monitoring the motor skills of players to be able to respond to the demands of modern football. Future research, which deal with the same topics, can based on this study compare the results obtained on the same tests, or focus on other motor skills.
Proceeding book, 2019
Introduction: The coach is the person who leads, teaches and trains athletes, but most often in a... more Introduction: The coach is the person who leads, teaches and trains athletes, but most often in addition to physical and technical preparation, the coach can also perform psychological preparation of athletes in order to perform better at the upcoming performances or competitions. In the behavior of coaches, we can recognize different styles that influence each athlete and the training process and affecting their effectiveness and self-evaluation. Aim: The main aim of the research is to determine the influence of the observed style of behavior of coaches on the perfectionism among athletes. Methodology: The sample of respondents consisted of 99 athletes, aged 19 to 25, who are engaged in team sports (basketball, football and volleyball), with average sports experience of 8.20 ± 3.86 years. They completed questionnaires of Competitive Perfectionism Scale (CPS) and Leadership Scale for Sport (LSS). Results: Mean and standard deviation scores for perfectionism were as follows, respectively: 26.07 & 3.55 for striving for perfection; 18.11 & 5.87 for a negative reaction to imperfection, slightly higher compared to other studies. Conclusions: The results of this study show that there is no statistically significant connection between the perception of the coach's behavior on the perfectionism of athletes and the need for further investigation of the causes, cohesion, and consequences of behavior of sports coaches on the behavior, efficiency, and development of athletes, different sexes, ages within various sports disciplines.
Interval training can be adapted to match the needs of a sport when it is aimed at the developmen... more Interval training can be adapted to match the needs of a sport when it is aimed at the development of specific speed endurance Shows the description and application of cardio and interval training (HIT- high intensity training, HIIT-high intensity interval training and Tabata method) in order to increase the efficiency of high intensity interval training. A cardio training should be based on individual goals. If the goal of a cardio training is burning fat, then one should focus on nutrition and weight training. Interval trainings (HIT-high intensity training, HIIT-high intensity interval training and Tabata method) are a much better option for the loss of fat deposits than traditional jogging. Aforementioned examples of HIIT have shown that with fitness enthusiasts and sports people it is possible to carry out a systematic training in a safe and efficient way without disturbing the development of motor abilities and sports techniques.
It is believed that coaches working with children have to be highly qualified for their job. They... more It is believed that coaches working with children have to be highly qualified for their job. They have to know all about specificity of the different age groups they are working with in order to achieve the desired objectives. The purpose is the strength development as a necessary part of every physical and sports activities for children. The issue of this paper is the attempt to work through the theoretical approach to perform the possibilities of strength developing during the process of physical preparation as well as its role and importance in physical and sports development, not only for children who are not in the training process, but also for those who are actively involved in sports. The strength intensifies competitive success during the performance of sport skills. Early onset of force development is important for motor and physical development. Strength training in childhood is one of the conditions of good posture and injury prevention and is an important element of opt...
Knowing the degree of motor skills development in certain age, making the precise model of traini... more Knowing the degree of motor skills development in certain age, making the precise model of training is the key, which will be exactly balanced percentage of specific exercises, aimed at maximum development of certain motor skills. The purpose of the research is to develop strength and speed with trained and untrained 12 years boys under the six weeks training influence with an emphasis on developing these skills. The aim is to determine how the applied program, with emphasis on strength and speed in a six-week period, affects the development of these abilities in trained and untrained boys, and where the positive effects could be seen. The research involved 51 boys at he age of 12. The variables are selected so as to be adapted to the aim of the research and to the examinees. The differences between the results of motor tests were analyzed using the initial and final measurement between groups and within each group of examinees separetly. It is obvious that the training program prov...
The aim of our research was to analyze the reliability and validity of judges’ E scores and artis... more The aim of our research was to analyze the reliability and validity of judges’ E scores and artistry deductions on the balance beam in the qualifying competition (C ‐ I) of the 2014 European Championship in senior (n=89) competition. The following reliability and validity statistics were then calculated: Interclass Correlation Coefficient (ICC), Cronbach’s alpha, Kendall coefficient of concordance W and repeated measures ANOVA. All data were analyzed using SPSS 20. The most of the results are satisfying, but correlations between judges for the artistry deductions are smaller than .90 so we can report that the quality of judging artistry was on the lower level comparing to the E score. The results of our investigation showed the need for better definition of the artistry deductions during the next Olympic cycle. Some of the authors suggested that computerized systems for the artistic gymnastics judging should be tested in order to reduce differences between judges.
The main objective of this study was to investigate the correlation of mechanical properties of t... more The main objective of this study was to investigate the correlation of mechanical properties of the muscle force obtained from myotest (Copyright @ Myotest SA) and tensiometric platform (HBM @ German & Serbian TRC), which are located at the Faculty of Sport and Physical Education in Nis. In this study, a subject was performing a vertical jump by myotest protocol for a half squat jumping. During the jumps and leaps each examinee carried myotest which was performed on tensiometric platform. Variables that were treated in this study are: First maximum force measured in Newtons PF (N); Second time needed to obtain power PT in milliseconds (ms); 3rd RFD force growth as an index of explosive strength. On the basis of the research, the following conclusion could be done: The force, measured by the method set out in piezoelectric devices tensiometric force sensors and platforms using electric accelerometers obtained within statistically insignificant small difference. Thus, we have shown th...
Facta universitatis. Series physical education and sport, 2016
The aim of this study was to determine the effects of 10 weeks of vibration training on changes t... more The aim of this study was to determine the effects of 10 weeks of vibration training on changes to the explosive strength of the upper limbs, as well as to determine whether the possible effects were caused by vibrational stimulation of the muscles or static exercises. The research sample comprised 60 male participants, aged 21 ± 6 months, randomly divided into three subsamples. The experimental group (n=15) comprised participants included in a specially designed vibration training using the Flexi-bar, the first control group (n=15) comprised participants included in a specially designed static training, and the second control group comprised participants not included in any specially designed training (n=30). All of the participants were tested at the beginning using the bench press test and the Myotest was used as a measuring instrument . The statistical methods used in this research to investigate the effects of the training were the univariate analysis of covariance (...
The aim of our study was to determine the relationship between perfectionism and perception of co... more The aim of our study was to determine the relationship between perfectionism and perception of coaches' behavior in male adolescence athletes. The final sample of respondents (67 athletes, mean age 20.28±.92 years) is selected from the initial sample of 130 subjects, students at the Faculty of Sport and Physical Education in Nis. They completed the two questionnaires: Leadership scale for sport (LSS) and Competitive perfectionism Scale (CPS). The results showed a significant relationship between striving for perfection and training instructions (.47), social support (.44), and positive feedback (.46), and also negative striving for perfection and autocratic behavior (.40). This study provides valuable insight into understanding the dynamics of sports leadership and perfectionism in athletes. Research on the coach‐athlete interactions, and also perfectionism from the perspective of an athlete need to be continued.
The aim of this study was to investigate the relationship between variables of dynamic balance an... more The aim of this study was to investigate the relationship between variables of dynamic balance and countermovement jump in young, female gymnasts. A single-group design was used. Forty-seven young, female gymnasts (Mean±SD ; age: 8-12 years, height: 42.88±10.38 cm, mass: 35.59±8.15 kg ; body mass index: 17.18±1.62 kg/m2 ; training hours per week: 15-18 h/week) performed measurements of dynamic balance and countermovement jump with and without arm swing. Significant, but small to medium associations were observed between variables of balance and height of the jump in both protocols of the countermovement jump ranging from r = +0.313 to +0.426. No significant associations were observed between variables of dynamic balance and relative power and peak power of countermovement jump with or without arm swings. The data indicate that dynamic balance and leg power imply that balance and power are independent of each other and may have to be tested and trained complementarily in young gymnasts.
The aim of our study was to examine perception of coaches' behavior of male adolescence athle... more The aim of our study was to examine perception of coaches' behavior of male adolescence athletes. The final sample of respondents (67 athletes, mean age 20.28±.92) is selected from the initial sample of 130 subjects, students at the Faculty of Sport and Physical Education in Nis which were active in sport. They completed the two questionnaires: Leadership scale for sport (LSS) and Negative coaches’ behavior questionnaire (NCBQ). The results showed significant relationship between dimensions of both questionnaires from ‐.50 to .60. The coach is the most important person in determining the quality and success of an athlete’s sport experience, yet surprisingly, little research exists that identifies optimal coaching behaviors and factors that influence the effectiveness of particular behaviors. Future researches should deal with examining other athlete and coach individual difference variables that might influence coaching behaviors and athletes’ perceptions and evaluative reaction...
Facta universitatis. Series physical education and sport, 2009
World Academy of Science, Engineering and Technology, International Journal of Sport and Exercise Sciences, Feb 25, 2016
ISBS - Conference Proceedings Archive, 2006
Sport Mont Journal, 2013
Vibration training belongs to the category of non-conventional methods of strength and power deve... more Vibration training belongs to the category of non-conventional methods of strength and power development in a short period of time. Mechanical vibrations which exert influence on the body can cause changes in gravitational conditions and thus initiate certain biological responses. Vibration stimuli are applied on the terminal point of the kinematic chain and thus can induce oscillations spreading through the muscle. Regardless of the type of the vibration training applied basic idea is to combine willing muscle activations and muscle stretching with the vibration stimulus. Vibration training utilizing Flexi-bar as an oscillating requisite belongs to the group of trainings where work-outs are performed with the additional vibrational stimulation. Vibrational stimulation of the muscle which is achieved on that occasion is induced by small frequences of 4,6 Hz. The purpose of this paper is to give a review of the contemporary reserach studies which investigate the effects of the utiliz...
Sport Mont Journal, 2009
On a sample of 18 students of the Faculty of sports and physical education, age 20 years ± 6 mont... more On a sample of 18 students of the Faculty of sports and physical education, age 20 years ± 6 months, divided into 3 groups (one control and two ekperimentalne) the as- sessment of upper extremity repetitive forces wos done. After three different protocols of warming up the motorical measurements gave us some results. The results obtained in the final measurement point to the positive effects of warming on the selected protocol level repetitive forces
Sport Mont Journal, 2008
On the sample of 21 students of Faculty of sports and physical education, age 21±6 months, measur... more On the sample of 21 students of Faculty of sports and physical education, age 21±6 months, measurement of standing long jump length by using test for explosive puissance estimation of lower extremities was effected. Test was recorded by digital video camera, and all conditions for application of video analyses i.e. kinematics methods were present. After digitalization, record was mistreated and prepared for further manipulating by using appropriate software for video analyses. Four different persons measured jump length (4 items). Metric characteristics of standing long jump showed high signifi cation level.
Sport Mont Journal, 2005
The problem of this research is a definition of the level of isometric muscular potential dependi... more The problem of this research is a definition of the level of isometric muscular potential depending on the angle of ankle. Different conditions of the plantar flexion are defined by means of the angle between the segments of the foot and the shine. A sample of the examinees is drawn from the PE male students, aged 20 (±6 months) who were involved in certain physical activities. Sample of variables is composed of: plantar flexion under the angle of 90, under the angle smaller than 90, and under the angle bigger than 90, as well as the body weight measured by digital scales. It is expected to gain the biggest maximal strength in plantar flexion in the ankle under the angle smaller than 90. It is recommended that the athletes during the training sessions for the development of the strength of the shine muscles (triceps surae) use compulsory support (costructed platform) under the front part of the foot.
Sport Mont Journal, 2013
The young gymnasts from seven cities in the Republic of Serbia at the age of 8-12 years was cover... more The young gymnasts from seven cities in the Republic of Serbia at the age of 8-12 years was covered with programmed gymnastic training 3-4 times a week for 90 minutes and the system of competition within the "C" program GSS. The case studies are examined relationships conative characteristics modified by Catel 16PF questionnaire with success in gymnastics, which is estimated to success in the competition in the "C" program of the Gymnastics Federation of Serbia. Using canonical correlation analysis of the data show that in the space of conative characteristics examined were found to be factors I-sensitivity-sharp temper, H- fearlessness and Q1- openness to change. Success in gymnastics was defined positive relations with disciplines Rings (.77), Pommel horse and Bar (.73) and Vault (.63). The hypothesis that says "conative characteristics have a positive relationship with success in gymnastics" can not be accepted because there is a statistically positi...
Proceeding book, 2017
The aim of this study was to determine if there are differences in the motor abilities of players... more The aim of this study was to determine if there are differences in the motor abilities of players relative to their position on the team. A total of 27 participants of the football club "Car Konstantin" from Nis, male, age 17 ± 6 months participated in this study. The players were divided into three different groups according to their positions: defense (n=9), midfield (n=9) and attack (n=9). The study examined the differences in the explosive strength of the lower extremities, speed and endurance between the players in relation to their position on the team. In order to carry out the research, the following tests were used: for strength-the countermovement jump, 30m sprint speed and for endurance-the shuttle run test. The obtained results were processed by the T-test for independent samples. After the overall analysis it was shown that there were no statistically significant differences in the motor abilities of the players in relation to their position on the team. The main contribution of this paper is to point to the necessity of monitoring the motor skills of players to be able to respond to the demands of modern football. Future research, which deal with the same topics, can based on this study compare the results obtained on the same tests, or focus on other motor skills.
Proceeding book, 2019
Introduction: The coach is the person who leads, teaches and trains athletes, but most often in a... more Introduction: The coach is the person who leads, teaches and trains athletes, but most often in addition to physical and technical preparation, the coach can also perform psychological preparation of athletes in order to perform better at the upcoming performances or competitions. In the behavior of coaches, we can recognize different styles that influence each athlete and the training process and affecting their effectiveness and self-evaluation. Aim: The main aim of the research is to determine the influence of the observed style of behavior of coaches on the perfectionism among athletes. Methodology: The sample of respondents consisted of 99 athletes, aged 19 to 25, who are engaged in team sports (basketball, football and volleyball), with average sports experience of 8.20 ± 3.86 years. They completed questionnaires of Competitive Perfectionism Scale (CPS) and Leadership Scale for Sport (LSS). Results: Mean and standard deviation scores for perfectionism were as follows, respectively: 26.07 & 3.55 for striving for perfection; 18.11 & 5.87 for a negative reaction to imperfection, slightly higher compared to other studies. Conclusions: The results of this study show that there is no statistically significant connection between the perception of the coach's behavior on the perfectionism of athletes and the need for further investigation of the causes, cohesion, and consequences of behavior of sports coaches on the behavior, efficiency, and development of athletes, different sexes, ages within various sports disciplines.
Interval training can be adapted to match the needs of a sport when it is aimed at the developmen... more Interval training can be adapted to match the needs of a sport when it is aimed at the development of specific speed endurance Shows the description and application of cardio and interval training (HIT- high intensity training, HIIT-high intensity interval training and Tabata method) in order to increase the efficiency of high intensity interval training. A cardio training should be based on individual goals. If the goal of a cardio training is burning fat, then one should focus on nutrition and weight training. Interval trainings (HIT-high intensity training, HIIT-high intensity interval training and Tabata method) are a much better option for the loss of fat deposits than traditional jogging. Aforementioned examples of HIIT have shown that with fitness enthusiasts and sports people it is possible to carry out a systematic training in a safe and efficient way without disturbing the development of motor abilities and sports techniques.
It is believed that coaches working with children have to be highly qualified for their job. They... more It is believed that coaches working with children have to be highly qualified for their job. They have to know all about specificity of the different age groups they are working with in order to achieve the desired objectives. The purpose is the strength development as a necessary part of every physical and sports activities for children. The issue of this paper is the attempt to work through the theoretical approach to perform the possibilities of strength developing during the process of physical preparation as well as its role and importance in physical and sports development, not only for children who are not in the training process, but also for those who are actively involved in sports. The strength intensifies competitive success during the performance of sport skills. Early onset of force development is important for motor and physical development. Strength training in childhood is one of the conditions of good posture and injury prevention and is an important element of opt...
Knowing the degree of motor skills development in certain age, making the precise model of traini... more Knowing the degree of motor skills development in certain age, making the precise model of training is the key, which will be exactly balanced percentage of specific exercises, aimed at maximum development of certain motor skills. The purpose of the research is to develop strength and speed with trained and untrained 12 years boys under the six weeks training influence with an emphasis on developing these skills. The aim is to determine how the applied program, with emphasis on strength and speed in a six-week period, affects the development of these abilities in trained and untrained boys, and where the positive effects could be seen. The research involved 51 boys at he age of 12. The variables are selected so as to be adapted to the aim of the research and to the examinees. The differences between the results of motor tests were analyzed using the initial and final measurement between groups and within each group of examinees separetly. It is obvious that the training program prov...
The aim of our research was to analyze the reliability and validity of judges’ E scores and artis... more The aim of our research was to analyze the reliability and validity of judges’ E scores and artistry deductions on the balance beam in the qualifying competition (C ‐ I) of the 2014 European Championship in senior (n=89) competition. The following reliability and validity statistics were then calculated: Interclass Correlation Coefficient (ICC), Cronbach’s alpha, Kendall coefficient of concordance W and repeated measures ANOVA. All data were analyzed using SPSS 20. The most of the results are satisfying, but correlations between judges for the artistry deductions are smaller than .90 so we can report that the quality of judging artistry was on the lower level comparing to the E score. The results of our investigation showed the need for better definition of the artistry deductions during the next Olympic cycle. Some of the authors suggested that computerized systems for the artistic gymnastics judging should be tested in order to reduce differences between judges.
The main objective of this study was to investigate the correlation of mechanical properties of t... more The main objective of this study was to investigate the correlation of mechanical properties of the muscle force obtained from myotest (Copyright @ Myotest SA) and tensiometric platform (HBM @ German & Serbian TRC), which are located at the Faculty of Sport and Physical Education in Nis. In this study, a subject was performing a vertical jump by myotest protocol for a half squat jumping. During the jumps and leaps each examinee carried myotest which was performed on tensiometric platform. Variables that were treated in this study are: First maximum force measured in Newtons PF (N); Second time needed to obtain power PT in milliseconds (ms); 3rd RFD force growth as an index of explosive strength. On the basis of the research, the following conclusion could be done: The force, measured by the method set out in piezoelectric devices tensiometric force sensors and platforms using electric accelerometers obtained within statistically insignificant small difference. Thus, we have shown th...
Facta universitatis. Series physical education and sport, 2016
The aim of this study was to determine the effects of 10 weeks of vibration training on changes t... more The aim of this study was to determine the effects of 10 weeks of vibration training on changes to the explosive strength of the upper limbs, as well as to determine whether the possible effects were caused by vibrational stimulation of the muscles or static exercises. The research sample comprised 60 male participants, aged 21 ± 6 months, randomly divided into three subsamples. The experimental group (n=15) comprised participants included in a specially designed vibration training using the Flexi-bar, the first control group (n=15) comprised participants included in a specially designed static training, and the second control group comprised participants not included in any specially designed training (n=30). All of the participants were tested at the beginning using the bench press test and the Myotest was used as a measuring instrument . The statistical methods used in this research to investigate the effects of the training were the univariate analysis of covariance (...
The aim of our study was to determine the relationship between perfectionism and perception of co... more The aim of our study was to determine the relationship between perfectionism and perception of coaches' behavior in male adolescence athletes. The final sample of respondents (67 athletes, mean age 20.28±.92 years) is selected from the initial sample of 130 subjects, students at the Faculty of Sport and Physical Education in Nis. They completed the two questionnaires: Leadership scale for sport (LSS) and Competitive perfectionism Scale (CPS). The results showed a significant relationship between striving for perfection and training instructions (.47), social support (.44), and positive feedback (.46), and also negative striving for perfection and autocratic behavior (.40). This study provides valuable insight into understanding the dynamics of sports leadership and perfectionism in athletes. Research on the coach‐athlete interactions, and also perfectionism from the perspective of an athlete need to be continued.
The aim of this study was to investigate the relationship between variables of dynamic balance an... more The aim of this study was to investigate the relationship between variables of dynamic balance and countermovement jump in young, female gymnasts. A single-group design was used. Forty-seven young, female gymnasts (Mean±SD ; age: 8-12 years, height: 42.88±10.38 cm, mass: 35.59±8.15 kg ; body mass index: 17.18±1.62 kg/m2 ; training hours per week: 15-18 h/week) performed measurements of dynamic balance and countermovement jump with and without arm swing. Significant, but small to medium associations were observed between variables of balance and height of the jump in both protocols of the countermovement jump ranging from r = +0.313 to +0.426. No significant associations were observed between variables of dynamic balance and relative power and peak power of countermovement jump with or without arm swings. The data indicate that dynamic balance and leg power imply that balance and power are independent of each other and may have to be tested and trained complementarily in young gymnasts.
The aim of our study was to examine perception of coaches' behavior of male adolescence athle... more The aim of our study was to examine perception of coaches' behavior of male adolescence athletes. The final sample of respondents (67 athletes, mean age 20.28±.92) is selected from the initial sample of 130 subjects, students at the Faculty of Sport and Physical Education in Nis which were active in sport. They completed the two questionnaires: Leadership scale for sport (LSS) and Negative coaches’ behavior questionnaire (NCBQ). The results showed significant relationship between dimensions of both questionnaires from ‐.50 to .60. The coach is the most important person in determining the quality and success of an athlete’s sport experience, yet surprisingly, little research exists that identifies optimal coaching behaviors and factors that influence the effectiveness of particular behaviors. Future researches should deal with examining other athlete and coach individual difference variables that might influence coaching behaviors and athletes’ perceptions and evaluative reaction...