Reducing Impact Loading During Running With the Use of Real-Time Visual Feedback
Reducing Impact Loading During Running With the Use of Real-Time Visual Feedback
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DOI：
10.2519/jospt.2010.3166
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发表时间：
2010-04-01
影响因子：
6.1
通讯作者：
Davis, Irene S.
中科院分区：
文献类型：
--
作者：
Crowell, Harrison Philip;Milner, Clare E.;Davis, Irene S.
研究设计：重复测量单个受试者。实验：确定跑步者是否可以使用来自加速度计的实时视觉反馈来立即降低胫骨加速度和垂直力负荷率。背景：应力性骨折是跑步者中常见的损伤。先前的研究表明，胫骨加速度和垂直力负荷率高于正常水平的跑步者胫骨应力性骨折的风险增加。如果这些跑步者可以通过训练来减少下肢的负荷，可能会降低他们发生应力性骨折的风险。所有受试者在跑步机上跑步，配备力传感器，在一个单一的30分钟的会议期间，分为热身，反馈，无反馈和冷却期。在跑步过程中，受试者还戴着一个加速度计贴在他们的右胫骨远端。峰值正加速度的胫骨，垂直力的冲击峰值，平均和瞬时的垂直力加载率进行了评估结束时的热身，反馈，和no-feedback periods.RESULTS：单一主题的分析显示，4的5名受试者有显着减少，他们的峰值正加速度结束时的无反馈期相比，热身。此外，所有的科目有显着减少的影响峰值和垂直地面反作用力加载率在年底的no feedback period.CONCLUSION：在一个单一的会话的培训与实时视觉反馈，它出现在大多数跑步者可以减少类型的下肢负荷与应力性骨折。这可能会导致训练计划，降低跑步者应力性骨折的风险，证据等级：预防，5级。J Orthop Sports Phys Ther 2010;40（4）：206-213。doi：10.2519/jospt.2010.3166
STUDY DESIGN: Single-subject with repeated measures.OBJECTIVES: To determine if runners can use real-time visual feedback from an accelerometer to achieve immediate reductions in tibial acceleration and vertical-force loading rates.BACKGROUND: Stress fractures are a common injury among runners. Previous studies suggest that runners with higher than normal tibial acceleration and vertical-force loading rates are at increased risk for tibial stress fractures. If these runners can be trained to reduce the loading on their lower extremities, it may reduce their risk of stress fractures.METHODS: five subjects participated in this study. All subjects ran on a treadmill, instrumented with force transducers, during a single 30-minute session that was divided into warm-up, feedback, no-feedback, and cool-down periods. During running, the subjects also wore an accelerometer taped to their distal right tibia. Peak positive acceleration of the tibia, vertical force impact peak, and average and instantaneous vertical-force loading rates were assessed at the end of the warm-up, feedback, and no-feedback periods.RESULTS: Single-subject analysis revealed that 4 of the 5 subjects had significant reductions in their peak positive acceleration at the end of the no-feedback period compared to the warm-up. In addition, all of the subjects had significant decreases in impact peak and vertical ground reaction force loading rates at the end of the no feedback period.CONCLUSION: In a single session of training with real-time visual feedback, it appears that most runners can reduce the types of lower extremity loading associated with stress fractures. This may lead to training programs that reduce the risk of stress fractures for runners,LEVEL OF EVIDENCE: Prevention, level 5. J Orthop Sports Phys Ther 2010;40(4):206-213. doi:10.2519/jospt.2010.3166