惯性测量单元识别的躯干运动补偿与髋关节骨关节炎患者的身体表现、肌肉力量和功能能力缺陷有关。
Trunk movement compensation identified by inertial measurement units is associated with deficits in physical performance, muscle strength and functional capacity in people with hip osteoarthritis.
机构信息
Veterans Affairs Salt Lake City Health Care System, University of Utah, Department of Physical Therapy and Athletic Training, Salt Lake City, UT, United States of America; University of Utah, Department of Physical Therapy and Athletic Training, Salt Lake City, UT, United States of America.
University of Utah, Department of Physical Therapy and Athletic Training, Salt Lake City, UT, United States of America.
出版信息
Clin Biomech (Bristol). 2021 Aug;88:105436. doi: 10.1016/j.clinbiomech.2021.105436. Epub 2021 Jul 21.
BACKGROUND
Trunk movement compensation characterized as ipsilateral trunk lean and posterior rotation with respect to pelvis during stance phase of walking is common in people with hip osteoarthritis and a biomarker of deficits in physical function in older adults. However, the relationship between trunk movement compensation on deficits in physical performance, muscle strength and functional capacity is unknown.
METHODS
A cross-sectional study design was used. Two inertial measurement units were used to assess trunk movement compensation during the six-minute-walk-test. Knee extension, knee flexion and hip abduction strength were measured using hand-held dynamometer. Multivariate regression models, controlling for self-reported hip pain, were used to regress trunk movement compensation onto six-minute-walk-test and muscle strength measures. Pairwise t-tests were used to evaluate the difference trunk movement compensation has on functional capacity by comparing the first and last minute of the six-minute-walk-test.
FINDINGS
Thirty-five participants (63.3 ± 7.4 years, 57% male, 28.6 ± 4.5 kg/m) were enrolled. Greater trunk movement compensation was related to poorer six-minute-walk-test (p = 0.03; r = -0.46). Greater hip abduction weakness was related to increased trunk movement compensation in both the sagittal (p = 0.05; r = -0.44) and frontal (p = 0.04; r = -0.38) planes. Participants demonstrated greater frontal plane trunk movement compensation during the last minute compared to the first minute of the six-minute-walk-test (p < 0.01).
INTERPRETATION
Trunk movement compensation, identified by inertial measure units, is a clinically relevant measure and has a moderate-to-strong relationship on deficits in physical performance, muscle strength and functional capacity. Inertial measurement units can be used as a practical means of measuring movement quality in the clinical setting.
背景
在髋关节骨关节炎患者的步行支撑相，躯干向患侧倾斜并向后旋转，这是躯干运动代偿的特征，也是老年人身体功能缺陷的生物标志物。然而，躯干运动代偿与身体表现、肌肉力量和功能能力缺陷之间的关系尚不清楚。
方法
采用横断面研究设计。使用两个惯性测量单元在六分钟步行测试期间评估躯干运动代偿。使用手持测力计测量膝关节伸展、膝关节屈曲和髋关节外展力量。使用多变量回归模型，控制自我报告的髋关节疼痛，将躯干运动代偿回归到六分钟步行测试和肌肉力量测量值上。使用配对 t 检验来评估躯干运动代偿在功能能力上的差异，通过比较六分钟步行测试的第一分钟和最后一分钟来评估。
结果
共纳入 35 名参与者（63.3±7.4 岁，57%为男性，28.6±4.5kg/m）。更大的躯干运动代偿与六分钟步行测试较差相关（p=0.03；r=-0.46）。更大的髋关节外展无力与矢状面（p=0.05；r=-0.44）和额状面（p=0.04；r=-0.38）的躯干运动代偿增加有关。与六分钟步行测试的第一分钟相比，参与者在最后一分钟表现出更大的额状面躯干运动代偿（p<0.01）。
解释
惯性测量单元识别的躯干运动代偿是一种具有临床相关性的测量方法，与身体表现、肌肉力量和功能能力缺陷有中度至强的关系。惯性测量单元可以作为一种实用的方法，在临床环境中测量运动质量。
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