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Asian J Kinesiol > Volume 14(4); 2012 > Article
The Official Journal of the Korean Academy of Kinesiology 2012;14(4):49-60.
DOI: https://doi.org/10.15758/jkak.2012.14.4.49     Published online October 30, 2012.
The Biomechanical Analysis of Rearfoot Control Variables and Foot Pressure Distribution Variables for the Development of Tennis Shoes during Running and Side-step Motion
Min-Ju Jeon, Chang-Soo Kwak
Hanseo University
Correspondence:  Chang-Soo Kwak,
Email: cskwak@hallym.ac.kr
Received: 4 October 2012   • Accepted: 28 October 2012
Abstract

INTRODUCTION
Running and side step are recognized as more important ones than any other motion in a tennis match. The purpose of this study was to provide preliminary data for designing tennis shoes which were effective in not only injury prevention but exercise performance by the analysis of rearfoot control motion and foot pressure distribution pattern on during running and side-step.
METHOD
The subjects of this study were 10 university male tennis players who had experienced no injuries in lower extremities in recent one year. The 3D cinematographic analysis equipment and the foot pressure distribution equipment were used to analyze running and side step motion wearing three kinds of barefoot, domestic and foreign developed tennis shoes.
RESULT
Initial pronation of achilles tendon angle(running and side), initial pronation of rearfoot angle(running) and total angular displacement achilles tendon angle(side) were appeared bigger in barefoot. Initial pronation of rearfoot angle(side), total angular displacement of rearfoot angle(side), take-off achilles tendon angle(side), Torsion angle, Compression angle(side-step excluded) were showed bigger in the domestic tennis shoe. A foreign tennis shoe showed the shortest in the length of a regional contact time, whereas domestic shoe was the longest contact time. Regional maximum force was appeared bigger inmedial region of forefoot during running, whereas medial region of whole foot during side-step.
CONCLUSION
The result of motion analysis showed that barefoot and domestic tennis shoes figured out smaller initial pronation, total pronation and compression angle. The study also pointed out that foreign tennis shoes had some problems in rearfoot control variables, but they had some better variables than domestic ones. The result of foot pressure distribution pattern of male tennis players indicates that the types of motion determine difference slightly in the peak pressure, the time of peak pressure, the length of contact time, the peak force, and the time of peak pressure, and regional impulse.
Keywords: Tennis Shoes, Rearfoot Control, Foot Pressure
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