التوازن الديناميكي و علاقته ببعض متغيرات مكون الجسم للاعبين وفقا لمراكز اللعب في كرة القدم

Abstract EN

The current research aims to study the relationship between dynamic balance and some variables of body composition of football players according to their playing positions, (defenders, midfielders, forwards, goalkeepers), It also aims to comparison between different playing positions in dynamic balance and some variables of body composition, the research sample was (46) football players Registered in the Egyptian Football Association, The characteristics of the total sample are as follows: age 20.58 ± 1.38 (y), training age 10.88 ± 0.73 (y), height 1.77 ± 0.03(m), mass 74.06 ± 2.6 (kg), The researcher used the descriptive method with the survey method in this research, Body composition measurements were applied using the InBody 120 device, the measurements Included body mass, body mass index, skeletal muscle mass, fat mass, and fat percentage, dynamic balance measurements were applied using (Balance Test MFT, My Fitness Trainer Version 1.7), the measurements Included dynamic balance (left/right) and dynamic balance (forward/backward), The statistics were done with using the SPss software (V.20), The results shown that is a correlation between the body mass index, skeletal muscle mass, fat mass, fat percentage and the level of dynamic balance of football players, The Anova results indicated that there are significant differences between the midfield players and the goalkeepers in fat percentage, and dynamic balance measurements (left / right) and (forward / backward).

Whereas, the midfield players according to their characteristics were the lowest in fat percentage and the highest in the level of dynamic balance, this indicates that was a negative effect of fat percentage in dynamic balance level.