ABSTRACT

This study aimed to analyse kinematic variables of motor action in throwing from upward jumps by first- and second-line players in an elite handball team. Three-dimensional kinematic variables were analysed using the Statokin 3D Video Analysis system. The study sample (n=15) consisted of eight second line players. The results showed statistically significant differences between players of the second and first line in the length of the last stride (η²=0.87, p<0.001), horizontal velocity on the Y-axis (η²=0.51, p=0.003), average take-off velocity (η²=0.62, p=0.001), maximal horizontal and vertical velocities (Y and Z-axes) of the knee joint of the swinging leg (η²=0.53, p=0.002; η²=0.40, p=0.016), maximal angular velocities of the hip and knee joints of the take-off leg (η²=0.38, p=0.023; η²=0.23, p=0.050), angular velocity of the knee joint of the swinging leg (η² = 0.61, p < 0.001), maximal extension angle of the elbow during backswing (η²=0.41, p=0.042), and average speed at which the ball was released (η²=0.71, р<0.001). The kinematic variables of the motor action of the body joints differed between players from the second- and first-line during throwing from upward jumps. Further investigations are still needed to better understand the complexity of elbow joint rotation, flexion, and extension.

Keywords: 3D-kinematics, ball release speed, jump throw

العنوان

SOUTH AFRICAN JOURNAL for RESEARCH in SPORT PHYSICAL EDUCATION and RECREATION

الناشر

University of Stellenbosch

بلد الناشر

جنوب افريقيا (الجمهورية)

Indexing

Thomson Reuters

معامل التأثير

0,22

نوع المنشور

Both (Printed and Online)

المجلد

43

السنة

2021

الصفحات

125-139