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• W2029276064 abstract "When dealing with human-powered vehicles, it is important to quantify the capability of converting metabolic energy in useful mechanical work by measuring mechanical efficiency. In this study, net mechanical efficiency (η) of riding a recumbent bicycle on flat terrain and at constant speeds (v, 5.1–10.0 m/s) was calculated dividing mechanical work (w, J/m) by the corresponding energy cost (Cc, J/m). w and Cc increased linearly with the speed squared: w = 9.41 + 0.156 · v2; Cc = 39.40 + 0.563 · v2. η was equal to 0.257 ± 0.0245, i.e. identical to that of concentric muscular contraction. Hence, i) η seems unaffected by the biomechanical arrangement of the human–vehicle system; ii) the efficiency of transmission seems to be close to 100%, suggesting that the particular biomechanical arrangement does not impair the transformation of metabolic energy in mechanical work. When dealing with human-powered vehicles, it is important to quantify mechanical efficiency (η) of locomotion. η of riding a recumbent bicycle was calculated dividing the mechanical work to the corresponding energy cost of locomotion; it was practically identical to that of concentric muscular contraction (0.257 ± 0.0245), suggesting that the power transmission from muscles to pedals is unaffected by the biomechanical arrangement of the vehicle." @default.
• W2029276064 created "2016-06-24" @default.
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• W2029276064 date "2008-09-20" @default.
• W2029276064 modified "2023-09-26" @default.
• W2029276064 title "Energy cost and mechanical efficiency of riding a human-powered recumbent bicycle" @default.
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• W2029276064 doi "https://doi.org/10.1080/00140130802238614" @default.
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