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Category

Implement sports

Document Type

Paper

Abstract

Inappropriate cycling positions may affect muscle usage and raise the fatigue level or risk of sport injury. Dynamic bike fitting helps the cyclists select proper bikes and adjust them to fit their ergometry. The purpose of this study is to investigate how different “knee forward of foot” (KFOF) distances can influence the rate of muscle fatigue and the energy expenditure during long periods of cycling. 6 amateur cyclists were recruited to perform the graded exercise testing with different pedaling positions at four KFOF distances (+20, 0, -20, and -40 mm). Our results revealed that the muscle fatigue level, oxygen consumption and respiratory exchange that were evaluated by the Surface EMG and portable energy metabolism system would be significantly increased with KFOF at 20 and -40 mm when compared to those with KFOF at 0 and -20 mm.

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