Effects of lower extremity muscle fatigue on the outcomes of slip-induced falls.
Effects of lower extremity muscle fatigue on the outcomes of slip-induced falls.
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DOI：
10.1080/00140130802567087
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发表时间：
2008-12
期刊：
影响因子：
2.4
通讯作者：
Lockhart TE
中科院分区：
文献类型：
--
作者：
Parijat P;Lockhart TE
滑倒引起的坠落事故仍然是造成致命伤害和经济损失的重要原因。识别导致滑倒引起的福尔斯跌倒的风险因素是制定更好的预防措施以减少跌倒事故的关键。虽然流行病学研究表明局部肌肉疲劳可能是滑倒引起的福尔斯跌倒的危险因素之一，但还没有记录在案的生物力学研究来研究疲劳和跌倒事故之间的关系。因此，本研究的总体目标是研究股四头肌局部肌肉疲劳对滑倒诱导福尔斯的滑倒起始和滑倒恢复阶段的影响。招募了16名健康的年轻参与者，在两个不同的阶段（疲劳和不疲劳）中走过乙烯基地板表面。运动学和动力学数据收集使用3-D运动分析系统和测力板在这两个会议。结果表明，局部肌肉疲劳的股四头肌影响各种运动学和动力学步态变量与较高的风险滑倒诱导福尔斯。此外，研究结果表明，膝伸肌的局部肌肉疲劳导致延迟响应，产生有效的关节力矩和使用拖曳肢体从跌倒中恢复的支撑基础。这项研究的结果表明，局部肌肉疲劳是导致滑倒引起的福尔斯跌倒的潜在危险因素。
Slip-induced fall accidents continue to be a significant cause of fatal injuries and economic losses. Identifying the risk factors causing slip-induced falls is key to developing better preventive measures to reduce fall accidents. Although epidemiological studies suggest localised muscle fatigue may be one of the risk factors for slip-induced falls, there has been no documented biomechanical study examining the relationship between fatigue and fall accidents. As such, the overall objective of the current study was to investigate the effects of localised muscle fatigue of the quadriceps on the slip initiation and slip recovery phases of slip-induced falls. Sixteen healthy, young participants were recruited to walk across a vinyl floor surface in two different sessions (fatigue and no fatigue). Kinematic and kinetic data were collected using a 3-D motion analysis system and force plates during both sessions. Results suggest that localised muscle fatigue of the quadriceps affected various kinematic and kinetic gait variables that are linked with a higher risk of slip-induced falls. Additionally, the results indicated that localised muscle fatigue of the knee extensor muscle caused a delayed response in producing an effective joint moment and base of support using the trailing limb to recover from a fall. The findings from this study indicate that localised muscle fatigue is a potential risk factor causing slip-induced falls.
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2.4
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