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Effect of gait parameters on energetic cost
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Effect of gait parameters on energetic cost : ウィキペディア英語版
Effect of gait parameters on energetic cost

The effect of gait parameters on energetic cost is a relationship that describes how changes in step length, cadence, step width, and step variability influence the mechanical work and metabolic cost involved in gait. The source of this relationship stems from the deviation of these gait parameters from metabolically optimal values, with the deviations due to environmental, pathological, and other factors.
==Cost of transport ()==
In human gait, to travel a particular distance, chemical energy must be expended by the body. This relationship can be expressed by the dimensionless term, cost of transport (COT).,〔Ralston, H. J. (1958). Energy-speed relation and optimal speed during level walking. Internationale Zeitschrift für Angewandte Physiologie Einschliesslich Arbeitsphysiologie, 17(4), 277-283.〕 that describes the amount of metabolic energy needed to move a body a unit of distance. Healthy humans walking at self-selected speeds have a cost of transport of approximately 0.8 calorie/meter/kilogram.〔Zarrugh, M. Y., Todd, F. N., & Ralston, H. J. (1974). Optimization of energy expenditure during level walking. European Journal of Applied Physiology and Occupational Physiology, 33(4), 293-306.〕 Depending on speed, stability conditions, and other internal and external factors,〔Voloshina, A. S., Kuo, A. D., Daley, M. A., & Ferris, D. P. (2013). Biomechanics and energetics of walking on uneven terrain. The Journal of experimental biology, 216(21), 3963-3970.〕〔Ijmker, T., Houdijk, H., Lamoth, C. J., Beek, P. J., & van der Woude, L. H. (2013). Energy cost of balance control during walking decreases with external stabilizer stiffness independent of walking speed. Journal of biomechanics,46(13), 2109-2114.〕〔Detrembleur, C., Dierick, F., Stoquart, G., Chantraine, F., & Lejeune, T. (2003). Energy cost, mechanical work, and efficiency of hemiparetic walking. Gait & posture, 18(2), 47-55.〕 the cost of transport for gait can change. These measured metabolic changes are attributed to variations in step length, step width, and other parameters of gait, which have a direct bearing on COT〔Donelan, J. M., & Kram, R. (2001). Mechanical and metabolic determinants of the preferred step width in human walking. Proceedings of the Royal Society of London. Series B: Biological Sciences, 268(1480), 1985-1992.〕〔.O’Connor, S. M., Xu, H. Z., & Kuo, A. D. (2012). Energetic cost of walking with increased step variability. Gait & posture, 36(1), 102-107.〕

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