Functional Role of Upper Limbs and Hip in During Control Balance Hand Stand Performance in Male Gymnasts

ABSTRACT: Balance is a part of physical fitness related to sport performance and plays a major role in almost all sport skills. This part of physical fitness plays a determining role in sport skills such as wrestling, gymnastics, and skiing to mention a few. The purpose of this study was to determine the role torque of upper limbs and hip joint in control balance during handstand performance in the male gymnasts. Ten gymnasts with an average age (18/21±1/10 years), height (165/69±4/21 cm) and weight (60/38±3/89 kg) participated in this study. Eight spherical markers were placed on their bodies on defined landmarks. Using motion analysis system with three cameras and a force plate, recorded handstand performed for five seconds. Kinematics data includes position, velocity and acceleration of angular limbs and joints of the body in the WINANALYZE software and Information kinetic (force) that was calculated by the BIOWARE software. The measurements Anthropometric was determined included limb mass, limb center of mass position and length of each limb. Two - dimensional model Defining of the five-part to the inverse dynamics method. The of wrist joint, elbow, shoulder and hip torque were calculated in MATLAB software. ANOVA statistical method (P > 0/05) used for data analysis. The most angular changes were observed in wrist, whereas the shoulder, hip, knee and elbow joints were observed, consequently. The most changes in torque were observed followed by elbow, shoulder, and thigh, respectively.