Abstract:
The purpose of this study is to elucidate the cost efficiency of mechanical energy of limited running and to provide theoretical bases of efficient running. Both cinematography and force measurement were conducted at the same time to the undergraduate students(male 20, female 18) by using four video came as and force platform to get force and kinematic data. By programming with a 7-segment model of body segment, maximum and minimum mechanical energy were obtained. By measuring the physiology energy cost of the same velocity on the treadmill, the mechanical cost efficiency was also obtained. The conclusions are as follows; 1. The correlation between maximum and minimum energy and body weight in men and women was low. The correlation between maximum and minimum energy and relative length of lower limb in men and women was significant(male : r=0.778, r=0.637, female : r =0.536, r=0.616 respectively). The correlation between maximum energy and height in women was significant(r=0.566). 2 The mechanical efficiency of real running in mechanical energy cost exists between maximum and minimum efficiency. 3. The correlation between the relative length of lower limb and the maximum cost efficiency in men and women was significant(r=0.698, r=0.683 respectively). The correlation between relative length of lower limb and minimum cost efficiency in men and women was also significant (r=0.738, r=0.724 respectively). Therefore, the man whose lower limb is relatively long shows high energy efficiency in motor performance.Keywords:
Energy cost
Mechanical energy
Treadmill
Energy requirement
Positive correlation
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