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首页> 外文期刊>Clinical biomechanics >Multi-segmental torso coordination during the transition from sitting to standing.
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Multi-segmental torso coordination during the transition from sitting to standing.

机译：从坐着到站立的过渡过程中的多节躯干协调。

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BACKGROUND: Research into the multi-segmental mobility of the torso could add to our understanding of the contributions of the head and torso to human movement. The purpose of this study was to determine the motion and temporal coordination of the head and multiple torso segments during the sit-to-stand task. METHODS: Thirty-two young, healthy participants performed five trials of the sit-to-stand movement and 6s of sitting. Range of motion and patterns of peak flexion and extension of six segments and joints and cross correlation of pairs of the six torso segments were analyzed from 3-D kinematic data. FINDINGS: Sagittal range of motion for torso joints during the sit-to-stand task was greater than during sitting trials; motion at the lumbar/pelvis joint was greater than at other torso joints. Peak flexion of torso joints occurred earlier than peak extension. Cross correlations at zero lag and time lags of maximum cross correlations varied such that there was greater temporal coordination of intermediate torso segments compared to pairs including the head and pelvis. There was greater temporal coordination of adjacent segment pairs than for pairs that were less proximal to each other. INTERPRETATION: A high degree of mobility occurs within the torso during the sit-to-stand task. Varying coordination patterns suggest that there are regional differences in movement timing within the torso that may relate to segmental differences in functional roles. Employing multi-segmental torso models may indicate different movement strategies within a healthy population and could highlight differences between clinical populations.
机译：背景：对躯干的多段活动性的研究可以加深我们对头部和躯干对人体运动的贡献的理解。这项研究的目的是确定从坐到站任务期间头部和多个躯干段的运动和时间协调性。方法：三十二名健康的年轻参与者进行了五项有关从坐到站运动和坐姿6s的试验。从3-D运动学数据分析了六个节段和关节的运动范围和峰值屈伸的模式，以及六个躯干节对的相互相关性。结果：从坐到站的任务期间，躯干关节的矢状运动范围比在坐试过程中大。腰/骨盆关节的运动比其他躯干关节的运动大。躯干关节的峰屈曲发生在峰伸之前。零滞后的互相关和最大互相关的时滞互不相同，因此与包括头和骨盆的对相比，中间躯干节段的时间协调性更高。相邻段对的时间协调性要好于彼此不那么近的段对。解释：在从坐到站的过程中，躯干内部发生了高度的活动。不同的协调方式表明，躯干内运动时间的区域差异可能与功能角色的分段差异有关。采用多段躯干模型可能指示健康人群中的不同运动策略，并可能突出临床人群之间的差异。

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