Although the midfoot is recognized to have an important role in the successful performance of a single-limb heel rise, healthy heel rise performance remains primarily characterized by ankle function. The purpose of this study was to examine the contribution of midfoot region power to single-limb heel rise in healthy adults. Participants (N = 12) performed 20 single-limb heel rises. An electromagnetic motion capture system and a force plate were used to record 3-segment foot motion and ground reaction forces. Inverse dynamic calculations were performed to obtain ankle and midfoot region powers. These data were evaluated with descriptive statistics. A correlation was performed to evaluate the contribution of midfoot region power to heel height, as heel height is a clinical measure of heel-rise performance. The midfoot contributed power during single-limb heel rise (peak positive power: 0.5 [0.2] W·kg-1). Furthermore, midfoot peak power accounted for 36% of the variance in heel height (P = .04). As energy generating internal mechanisms, such as muscle activity, are attributed to power generation, midfoot tissue loading and muscle performance should be considered during clinical and modeling applications of the heel-rise task.

中文翻译：

---

健康成年人单肢脚跟抬起时的脚踝和中足力量。

尽管中足被认为在单肢足跟抬起的成功表现中具有重要作用，但健康的足跟抬起性能仍然主要由踝关节功能来表征。本研究的目的是检查中足区域力量对健康成年人单肢足跟上升的贡献。参与者 (N = 12) 进行 20 次单肢脚跟抬高。使用电磁运动捕捉系统和测力台来记录 3 段足部运动和地面反作用力。进行逆动态计算以获得脚踝和中足区域的功率。这些数据通过描述性统计进行评估。进行相关性评估中足区域力量对鞋跟高度的贡献，因为鞋跟高度是鞋跟上升性能的临床衡量标准。单肢脚后跟上升时中足贡献力量（峰值正功率：0.5 [0.2] W·kg-1）。此外，中足峰值功率占鞋跟高度差异的 36% (P = .04)。由于产生能量的内部机制（例如肌肉活动）归因于发电，因此在脚跟抬高任务的临床和建模应用期间应考虑中足组织负荷和肌肉性能。