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The Relationship of the Optimal Gait Pattern with Energy Cost upon Ankle Immobilization

机译：固定踝关节时最佳步态模式与能量消耗的关系

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Purpose : The purposes of this study were to compare cardiopulmonary responses among four gait patterns and investigate the relationship between the optimal gait pattern and energy cost upon ankle immobilization. Method : Thirty-seven healthy men participated in the study. Subjects were randomly assigned to one of four groups and instructed to walk using the specific gait pattern with or without (control) immobilization of the right ankle. The gait patterns were as follows: (1) external rotation gait (external rotation of the right hip and a toe-out gait; (2) circumduction; (3) toe gait (foot flat in initial contact and forefoot in contact from midstance to pre-swing; and (4) behind step gait (step at the back of the immobilized foot). Subjects walked on a treadmill at an incremental speeds (1.0, 2.0, 3.0, 4.0 and 5.0 km?h–1). In addition, for each speed, eight subjects walked on a treadmill in free gait (no intentional dictation of gait pattern) with an ankle immobilized, and their observed walking patterns were categorized. Result : Cardiopulmonary responses and energy cost per meter varied according to the gait pattern. Among the subjects who were allowed to choose their own gait patterns, none selected a gait pattern that required high energy cost and/or energy cost per meter. Conclusion : Each gait pattern had unique characteristics. It is considered that individuals select optimal gait patterns to minimize energy costs.
机译：目的：本研究的目的是比较四种步态之间的心肺反应，并研究固定脚踝时最佳步态与能量消耗之间的关系。方法：37名健康男性参加了这项研究。将受试者随机分配到四组中的一组中，并指导他们使用特定的步态模式步行，无论是否固定（控制）右脚踝。步态模式如下：（1）外旋步态（右髋关节外旋和脚趾向外步态;（2）包绕;（3）脚趾步态（初次接触时脚平放，中肢到前脚接触前脚（4）在步态之后（步态在固定脚后部），受试者以跑步速度（1.0、2.0、3.0、4.0和5.0 km？h –1 < / sup>）。此外，对于每种速度，八名受试者在脚踝固定的情况下以自由步态（无故意的步态模式）在跑步机上行走，并对观察到的步行模式进行了分类。根据步态模式的变化，在允许自己选择步态模式的受试者中，没有人选择需要高能量成本和/或每米能量成本的步态模式结论：每种步态模式都有其独特的特征。认为个人选择最佳步态模式以最小化ze能源成本。

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