Abstract

In this study, efficiency of pedaling in cycling was investigated with a newly designed cleat-shape biaxial load cells and free body diagram of lower limbs. The size of biaxial load cells is almost same as commercial plastic cleats (Shimano Corp.). These road cells allow cyclists to connect their cycling-shoes to pedals. The lower limbs model consisted of three segments, the thigh, the lower thigh and the foot. From the lower limbs model, all position of lower limb segments, joint torques and joint torque powers were calculated. Additionally, the relationship betweeen the ankle angle and normal force was proposed. This relationship does not require the image-analysis software with the high-speed camera.

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