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首页> 外文期刊>Journal of applied physiology >Self, Z.T., Spence, A.J., Wilson, A.M.Speed and incline during Thoroughbred horse racing: Racehorse speed supports a metabolic power constraint to incline running but not to decline running
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Self, Z.T., Spence, A.J., Wilson, A.M.Speed and incline during Thoroughbred horse racing: Racehorse speed supports a metabolic power constraint to incline running but not to decline running

机译：自体，Z.T.，Spence，A.J。，威尔逊，A.M。纯种赛马时的速度和倾斜度：赛马速度支持新陈代谢的动力约束来使跑步倾斜而不是降低跑步

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We used a radio tracking system to examine the speed of 373 racehorses on different gradients on an undulating racecourse during 33 races, each lasting a few minutes. Horses show a speed detriment on inclines (0.68 m·s -1·1% gradient -1, r 2 = 0.97), the magnitude of which corresponds to trading off the metabolic cost (power) of height gain with the metabolic cost (power) of horizontal galloping. A similar relationship can be derived from published data for human runners. The horses, however, were also slower on the decline (-0.45 m·s -1·1% gradient -1, r 2 = 0.92). Human athletes run faster on a decline, which can be explained by the energy gained by the center of mass from height loss. This study has shown that horses go slower, which may be attributable to the anatomical simplicity of their front legs limiting weight support and stability when going downhill. These findings provide insight into limits to athletic performance in racehorses, which may be used to inform training regimens, as well as advancing knowledge from both veterinary and basic science perspectives.
机译：在33场比赛中，我们使用无线电跟踪系统在起伏的赛马场上检查了373匹赛马在不同坡度上的速度，每次持续几分钟。马在倾斜时表现出速度损失（0.68 m·s -1·1％梯度-1，r 2 = 0.97），其大小相当于将身高增加的代谢成本（功率）与代谢成本（功率）进行权衡。 ）的水平舞动。可以从已发布的有关人类赛跑者的数据中得出类似的关系。但是，马的下降速度也较慢（-0.45 m·s -1·1％梯度-1，r 2 = 0.92）。人类运动员在下降时跑得更快，这可以通过质心从身高损失中获得的能量来解释。这项研究表明，马走慢，可能是由于前腿的解剖结构简单，限制了下坡时的重量支撑和稳定性。这些发现提供了对赛马运动表现极限的见解，可用于指导训练方案，以及从兽医和基础科学的角度提高知识。

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