Biomechanical Analysis of Lower Extremity between Treadmill and Elliptical Trainer
碩士 === 臺北巿立體育學院 === 運動科學研究所 === 96 === Design concepts of elliptical trainers were reported to simulate the motion of the human gait, providing whole body motion and reducing impact loading to the lower limbs. A complete knowledge on the joints angular motion and ground reaction force would be helpf...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/38141497616132861715 |
| Summary: | 碩士 === 臺北巿立體育學院 === 運動科學研究所 === 96 === Design concepts of elliptical trainers were reported to simulate the motion of the human gait, providing whole body motion and reducing impact loading to the lower limbs. A complete knowledge on the joints angular motion and ground reaction force would be helpful for realizing the advantage and disadvantage to avoid the sports injury. Eight adults were recruited to perform elliptical and treadmill exercise in this study. Lower limb kinematics was obtained using a 10-camera motion analysis system. And T & T Medilogic system was used to measure the reaction force.
The results show that the smallest degree of knee joint was increased but the degree of ankle joint was decreased when the speed was increased. But the smallest angle of knee joint was decreased and the ankle joint was increased when on the elliptical trainer. The vertical ground reaction force of treadmill was 11-36% higher than elliptical trainer at 110 steps/min speed, and it was even higher in 34-66% at 140 steps/min speed. The angles of knee and ankle joints were maximal on elliptical trainer during the cycle of 25-50%. Instead of push-off movement in normal gait, push down is used to start the elliptical cycle.
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