Education Development Office, Faculty of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Fars, Iran.
Phys Ther. 2010 Apr;90(4):561-71. doi: 10.2522/ptj.20090093. Epub 2010 Feb 18.
Rehabilitation of elderly patients with sit-to-stand (STS) dysfunction includes retraining coordinated movement among participating body segments. Although trunk position is considered important, spinal movement has not been measured.
The aim of this study was to describe the sagittal thoracolumbar kinematics and hip-lumbar interaction during the STS task in elderly people who were healthy in order to guide physical therapists in developing treatment strategies.
This was an observational study.
Ten retroreflective markers were attached to the midline thoracolumbar spine, pelvis, and right lower limb of 41 elderly people who were healthy. A 2-dimensional video analysis system was used to measure sagittal thoracic, lumbar, hip, and knee joint angles during the STS task. Maximal available flexion-extension angles in these joints and regions also were determined.
Prior to buttocks lift-off, forward trunk lean comprised concurrent hip and lumbar flexion and thoracic extension. Hip flexion dominated, with a hip/lumbar ratio of 4.7:1 and a thoracic/lumbar ratio of 1.7:1. The hip and lumbar spine contributed 90% and 23% of their maximal available flexion angle, respectively, and the thoracic spine contributed 86% of its maximal extension range of movement. After lift-off, the hips and lumbar spine extended (ratio of 5.2:1), and the thoracic spine flexed (thoracic/lumbar ratio of 0.4:1). At lift-off, the hips and knees were similarly flexed (96 degrees ) and then locked together in a linear pattern of extension. Following lift-off, there was a brief transition phase (5% of STS duration) in which, although the hips, knees, and lumbar spine were extending, the trunk continued to flex forward a few degrees.
Results may differ in elderly people who are less active.
The revised model for image-based analysis demonstrated concurrent hip and thoracolumbar movement during the STS task. Close to full available hip flexion and thoracic extension were needed for optimal STS performance.
老年人从坐到站（STS）功能障碍的康复包括重新训练参与身体部位之间的协调运动。尽管躯干位置被认为很重要，但脊柱运动尚未测量。
本研究的目的是描述健康老年人 STS 任务中的胸腰椎矢状面运动学和髋腰相互作用，以指导物理治疗师制定治疗策略。
这是一项观察性研究。
将 41 名健康老年人的中线胸腰椎、骨盆和右下肢体附着 10 个反向反射标记。使用二维视频分析系统测量 STS 任务中胸、腰、髋和膝关节角度。还确定了这些关节和区域的最大可用屈伸角度。
在臀部抬起之前，前躯干倾斜包括髋关节和腰椎的同时屈曲和胸椎的伸展。髋关节屈曲占主导地位，髋关节/腰椎比为 4.7:1，胸椎/腰椎比为 1.7:1。髋关节和腰椎分别贡献了其最大可用屈曲角度的 90%和 23%，胸椎贡献了其最大伸展运动范围的 86%。抬起后，髋关节和腰椎伸展（比为 5.2:1），胸椎弯曲（胸椎/腰椎比为 0.4:1）。在抬起时，髋关节和膝关节同样弯曲（96 度），然后一起锁定在伸展的直线模式中。抬起后，有一个短暂的过渡阶段（STS 持续时间的 5%），在这个阶段，尽管髋关节、膝关节和腰椎在伸展，但躯干仍向前弯曲几度。
结果可能在活动量较少的老年人中有所不同。
基于图像的分析修订模型在 STS 任务中显示了髋关节和胸腰椎的同时运动。为了获得最佳的 STS 性能，需要接近完全可用的髋关节屈曲和胸椎伸展。
