Department of Orthopedic Surgery and Sports Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA.
Orthop J Sports Med. 2014 Mar 11;2(3):2325967114525582. doi: 10.1177/2325967114525582. eCollection 2014 Mar.
It has been proposed that running barefoot can lead to improved strength and proprioception. However, the duration that a runner must train barefoot to observe these changes is unknown.
Runners participating in a barefoot running program will have improved proprioception, increased lower extremity strength, and an increase in the volume or size of the intrinsic musculature of the feet.
Randomized controlled trial; Level of evidence, 2.
In this 8-week study, 29 runners with a mean age of 36.34 years were randomized into either a control group (n = 10) who completed training in their regular running shoes or to an experimental barefoot group (n = 14). Pretraining tests consisted of a volumetric measurement of the foot followed by a strength and dynamic balance assessment. Five subjects completed the pretests but did not complete the study for reasons not related to study outcomes. Participants then completed 8 weeks of training runs. They repeated the strength and dynamic balance assessment after 8 weeks.
Significant changes from baseline to 8 weeks were observed within the barefoot group for single-leg hop (right, P = .0121; left, P = .0430) and reach and balance (right, P = .0029) and within the control group for single-left leg hop (P = .0286) and reach and balance (right, P = .0096; left, P = .0014). However, when comparing the differences in changes from baseline to 8 weeks between the barefoot and control groups, the improvements were not significant at the .05 level for all measures.
Although statistically significant changes were not observed between the pre- and posttest evaluations in strength and proprioception with the 8-week low-intensity barefoot running regimen, this does not necessarily mean that these changes do not occur. It is possible that it may take months or years to observe these changes, and a short course such as this trial is insufficient.
有人提出，赤脚跑步可以提高力量和本体感觉。然而，跑步者必须赤脚训练多长时间才能观察到这些变化尚不清楚。
参加赤脚跑步计划的跑步者将改善本体感觉，增强下肢力量，并增加脚部内在肌肉的体积或大小。
随机对照试验；证据水平，2。
在这项为期 8 周的研究中，29 名平均年龄为 36.34 岁的跑步者被随机分为对照组（n=10），他们在常规跑鞋中完成训练；或实验组（n=14），赤脚跑步。预测试包括足部体积测量，然后进行力量和动态平衡评估。有 5 名受试者完成了预测试，但由于与研究结果无关的原因未完成研究。然后，参与者完成了 8 周的训练跑。8 周后，他们再次进行了力量和动态平衡评估。
从基线到 8 周，实验组的单腿跳跃（右侧，P=0.0121；左侧，P=0.0430）和触地与平衡（右侧，P=0.0029）以及对照组的单左腿跳跃（P=0.0286）和触地与平衡（右侧，P=0.0096；左侧，P=0.0014）均有显著变化。然而，当比较从基线到 8 周时，实验组和对照组之间的变化差异，所有测量值在 0.05 水平上均无显著差异。
虽然在 8 周低强度赤脚跑步方案中，力量和本体感觉的预测试和后测试评估没有观察到统计学上的显著变化，但这并不一定意味着这些变化不会发生。可能需要数月或数年的时间才能观察到这些变化，而像这样的短期试验是不够的。
