The influence of fatigue on trunk muscle responses to sudden arm movements, a pilot study
The influence of fatigue on trunk muscle responses to sudden arm movements, a pilot study
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DOI：
10.1016/s0268-0033(02)00029-3
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发表时间：
2002-06-01
影响因子：
1.8
通讯作者：
Henry, SM
中科院分区：
文献类型：
--
作者：
Allison, GT;Henry, SM
目标。研究躯干肌肉疲劳后，疲劳引起的躯干肌肉潜伏期的变化。主题设计中的重复措施。背景。躯干肌肉对突然运动的反应在临床生物力学和运动控制方面具有重要意义。记录腹横肌(FINEWIRE)的肌电图谱。内斜角。双侧第3腰椎水平的腹直肌、外斜肌和外长肌。4名无症状受试者在等长疲劳躯干伸展任务前后使用视觉引文进行手臂举起任务。在每一次试验中，并不是所有的肌肉都检测到前馈反应。一般来说，疲劳后躯干肌肉出现潜伏期较早(左，P=0.0016右。P=0.0475)。躯干肌肉疲劳改变了正常受试者的姿势调整。目前尚不清楚个体之间是否存在特定肌肉变化的模式，以及这些变化是否反映在患有下腰痛的个体身上。
Objective. To examine fatigue induced changes in trunk muscle latencies following trunk muscle fatigue.Design. A repeated measures within subject design.Background. Trunk muscle responses to Sudden movements is of interest in clinical biomechanics and motor control.Method. Electromyographic profiles were recorded from transversus abdominis (finewire). internal oblique. rectus abdominis and external oblique and longissimus at the level of the 3rd lumbar vertebrae bilaterally. Four asymptomatic subjects performed arm-raising task using a Visual Cite before and after an isometric fatiguing trunk extension task.Results. Feed-forward responses were not detected in all muscles for every trial. In general, following fatigue trunk muscle onset latencies occur earlier (left, P = 0.0016 right. P = 0.0475).Conclusions. Trunk muscle fatigue alters anticipators postural adjustments in normal subjects. It remains unclear if there is a pattern for specific muscles changes between individuals and if these are reflected in individuals, with low back pain.