Program in Kinesiology, Oregon State University-Cascades, Bend, Oregon, USA.
Am J Sports Med. 2019 Mar;47(4):968-973. doi: 10.1177/0363546519826086.
A recent study suggested that maximal running shoes may increase the impact force and loading rate of the vertical ground-reaction force during running. It is currently unknown whether runners will adapt to decrease the impact force and loading rate over time.
To compare the vertical ground-reaction force and ankle kinematics between maximal and traditional shoes before and after a 6-week acclimation period to the maximal shoe.
Controlled laboratory study.
Participants ran in a traditional running shoe and a maximal running shoe during 2 testing sessions 6 weeks apart. During each session, 3-dimensional kinematics and kinetics were collected during overground running. Variables of interest included the loading rate, impact peak, and active peak of the vertical ground-reaction force, as well as eversion and dorsiflexion kinematics. Two-way repeated measures analyses of variance compared data within participants.
No significant differences were observed in any biomechanical variable between time points. The loading rate and impact peak were higher in the maximal shoe. Runners were still everted at toe-off and landed with less dorsiflexion, on average, in the maximal shoe.
Greater loading rates and impact forces were previously found in maximal running shoes, which may indicate an increased risk of injury. The eversion mechanics observed in the maximal shoes may also increase the risk of injury. A 6-week transition to maximal shoes did not significantly change any of these measures.
Maximal running shoes are becoming very popular and may be considered a treatment option for some injuries. The biomechanical results of this study do not support the use of maximal running shoes. However, the effect of these shoes on pain and injury rates is unknown.
最近的一项研究表明，最大程度减少冲击的跑鞋可能会增加跑步时垂直地面反作用力的冲击力和加载率。目前尚不清楚跑步者是否会随着时间的推移适应降低冲击力和加载率。
比较在适应最大程度减少冲击的跑鞋 6 周前后，最大程度减少冲击的跑鞋与传统跑鞋对垂直地面反作用力和踝关节运动学的影响。
对照实验室研究。
参与者在 6 周的间隔内分两次测试分别穿着传统跑鞋和最大程度减少冲击的跑鞋进行跑步。在每次测试中，在地面跑步过程中收集三维运动学和动力学数据。感兴趣的变量包括加载率、冲击峰值和垂直地面反作用力的主动峰值，以及外翻和背屈运动学。使用双向重复测量方差分析比较参与者内部的数据。
在任何生物力学变量中，在时间点之间均未观察到显著差异。最大程度减少冲击的跑鞋的加载率和冲击峰值更高。跑步者在足趾离地时仍有外翻，平均而言，在最大程度减少冲击的跑鞋中落地时背屈角度更小。
以前在最大程度减少冲击的跑鞋中发现了更高的加载率和冲击力，这可能表明受伤的风险增加。在最大程度减少冲击的跑鞋中观察到的外翻力学也可能增加受伤的风险。最大程度减少冲击的跑鞋转换 6 周后，这些措施均无明显变化。
最大程度减少冲击的跑鞋越来越受欢迎，可能被认为是某些损伤的治疗选择。本研究的生物力学结果不支持使用最大程度减少冲击的跑鞋。但是，这些鞋子对疼痛和损伤率的影响尚不清楚。
