Lower extremity isometric muscle strength, jumping ability and Q angle values of amateur team players

The aim of this study was to investigate the relationship between Lower Extremity Isometric Muscle Strength, Jumping Ability and Q Angle Values of Amateur Team Players. The content of the research consisted of a total of 80 male team players with at least 5 years of sports experience, residing in Istanbul and studying at Sport Science Colleges/Faculties. All data related to the physical performances of the participants were determined by the devices in Istanbul Gelisim University Sportive Performance Measurement and Evaluation Laboratory. Participants' quadriceps, hamstring, gastrocnemius, tibialis anterior muscle strength values were determined using an isometric hand dynamometer. The measurement of the Q angle was made using a goniometer-measure. Jumping ability was determined by the vertical jump test. "Pearson Correlation Analysis" was used to determine the direction and intensity of the relationship between two numerical variables showing normal distribution. As a result of the research, a statistically significant relationship was found between the Q Angle value and the right leg gastrecnemius muscle strength, between the left leg quadriceps muscle strength and the right leg hamstring muscle strength, between the right-left leg quadriceps muscle strength and also between the right-left leg hamstring muscle strength (p > 0,05). This relationship is thought to be due to unilateral and bilateral muscle balance and symmetry between lower extremity muscle groups. As a result, it is thought that in order to improve physical performance at an optimal level and in a healthier way in sports branches where the lower extremity is predominantly used, such as basketball, football, volleyball and handball, it is important to first determine the relationship between the lower extremity muscle groups and to perform performance evaluation within this scope.