|
|
|
|
JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
|
 |
|
Research
article
|
PERFORMANCE AND KINEMATICS OF VARIOUS THROWING TECHNIQUES IN TEAM-HANDBALL |
|||||||||
Herbert Wagner1,2  ,
Jürgen Pfusterschmied1,2, Serge P. von Duvillard3
and Erich Müller1,2 |
|||||||||
1Department of Sport Science and Kinesiology, and 2CD-Laboratory "Biomechanics in Skiing", University of Salzburg, Austria, 3Department of Kinesiology-Exercise Science and Biology, College of Idaho, USA |
|||||||||
|
|||||||||
© Journal of Sports Science and Medicine (2011) 10, 73 - 80 |
|||||||||
|
|
| ABSTRACT | |||
| In team-handball competition, the players utilize various throwing
techniques that differ in the lower body movements (with and without run-up
or jump). These different lower body movements influence changes in the
upper body movements and thus also affect the performance. A comprehensive
analysis of 3D-kinematics of team-handball throws that may explain these
differences in performance is lacking. Consequently, the purpose of this
study was (1) to compare performance (ball velocity and throwing accuracy)
between the jump throw, standing throw with and without run-up, and the
pivot throw; (2) to calculate the influence of kinematic parameters to ball
velocity; and (3) to determine if these four throwing techniques differ
significantly in kinematics. Three-dimensional kinematic data (angles, angular
velocities and their timing, ball velocity and velocity of the center of
mass) of 14 elite team-handball players were measured using an 8 camera
Vicon MX13 motion capture system (Vicon, Oxford, UK), at 250 Hz. Significant
difference was found between the four throwing techniques for ball velocity
(p < 0. 001), maximal velocity of the center of mass in goal-directed
movement (p < 0.001), and 15 additional kinematic variables (p < 0.003).
Ball velocity was significant impacted by the run-up and the pelvis and
trunk movements. Depending on floor contact (standing vs. jump throws),
elite players in the study used two different strategies (lead leg braces
the body vs. opposed leg movements during flight) to accelerate the pelvis
and trunk to yield differences in ball velocity. However, these players
were able to utilize the throwing arm similarly in all four throwing techniques.
Key words: Ball games, biomechanics, ball velocity, throwing accuracy. |
|