Escamilla-Martínez Elena, Martínez-Nova Alfonso, Gómez-Martín Beatriz, Sánchez-Rodríguez Raquel, Fernández-Seguín Lourdes María
Nursing Department, University of Extremadura, Plasencia, Spain.
J Am Podiatr Med Assoc. 2013 Mar-Apr;103(2):121-5. doi: 10.7547/1030121.
Fatigue due to running has been shown to contribute to changes in plantar pressure distribution. However, little is known about changes in foot posture after running. We sought to compare the foot posture index before and after moderate exercise and to relate any changes to plantar pressure patterns.
A baropodometric evaluation was made, using the FootScan platform (RSscan International, Olen, Belgium), of 30 men who were regular runners and their foot posture was examined using the Foot Posture Index before and after a 60-min continuous run at a moderate pace (3.3 m/sec).
Foot posture showed a tendency toward pronation after the 60-min run, gaining 2 points in the foot posture index. The total support and medial heel contact areas increased, as did pressures under the second metatarsal head and medial heel.
Continuous running at a moderate speed (3.3 m/sec) induced changes in heel strike related to enhanced pronation posture, indicative of greater stress on that zone after physical activity. This observation may help us understand the functioning of the foot, prevent injuries, and design effective plantar orthoses in sport.
研究表明，跑步引起的疲劳会导致足底压力分布发生变化。然而，对于跑步后足部姿势的变化却知之甚少。我们试图比较适度运动前后的足部姿势指数，并将任何变化与足底压力模式联系起来。
使用FootScan平台（RSscan International，比利时奥伦）对30名经常跑步的男性进行了足底压力测量评估，并在以适度速度（3.3米/秒）连续跑步60分钟前后，使用足部姿势指数对他们的足部姿势进行了检查。
在60分钟跑步后，足部姿势呈现出内旋倾向，足部姿势指数增加了2分。总支撑面积和内侧足跟接触面积增加，第二跖骨头下方和内侧足跟的压力也增加。
以适度速度（3.3米/秒）持续跑步会引起与内旋姿势增强相关的足跟撞击变化，这表明身体活动后该区域承受的压力更大。这一观察结果可能有助于我们理解足部的功能、预防损伤，并设计出有效的运动足底矫形器。
