A simple model of energy expenditure in human locomotion

Details A simple model of energy expenditure in human locomotion A simple model of energy expenditure in human locomotion

2006-09-06

arxiv.org/abs/q-bio/0609007v1

Revista Brasileira de Ensino de Fisica, v. 31, n. 4, 4306 (2009)

Biology

Quantitative Biology

Quantitative Methods

13 pages, 5 figures, submitted to EPJ B

Scientific paper

A simple harmonic oscillator model is proposed to describe the mechanical power involved in human locomotion. In this framework, by taking into account the anthropometric parameters of a standard individual, we are able to calculate the speed-power curves in human walking. The proposed model accounts for the well known Margaria's law in which the cost ofthe human running (independent from the speed) is fixed to 1 Kcal/(Kg Km). The model includes the effects of a gentle slope (either positive or negative) and the effect due to the mechanical response of the walking surface. The model results obtained in the presence of a slope are in qualitative agreement with the experimental data obtained by A. Leonardi et al.

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