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Two dimensional motion analysis on angle of knee joint bend during long jump take-off
  1. P Sureshbabu,
  2. C Ashok
  1. Department of Physical Education, Ayya Nadar Janaki Ammal College, Sivakasi, Tamil Nadu, India

Abstract

Biomechanics is the sport science field that applies the laws of mechanics and physics to human performance, in order to gain a greater understanding of performance in athletic events through modelling, simulation and measurement. It is also necessary to have a good understanding of the application of physics to sport, as physical principles such as motion, resistance, momentum and friction play a part in most sporting events. Most long jumpers use check marks as a guide in the run up. Check marks can be used in training for the control and adjustments of the acceleration phase as well as the preparation phase of the take-off. Check marks have no value in competition, as the athlete's concentration should be fixed on the take-off board. The purpose of this study was to investigate the angle of the knee joint bend during long jump take off. The take off was examined by a two dimensional motion analysis system. The average angle of the knee joint bend during long jump take off is 192.2 ± 22.4 and the average angle of the knee joint bend during long jump take off of high performers of the group is 166.33 ± 3.26 and the rest of them were 202.12 ± 12.5. The findings of the study opined that one should try to reduce the angle of the knee joint bend during long jump take off for gaining mere performance.

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