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Assessment of arm movements during gait in stroke - The Arm PostureScore

机译：中风步态中手臂运动的评估-Arm PostureScore

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The purpose of the study was to apply the Arm Posture Score (APS) to a stroke population, since comprehensive measures to quantify arm swing in the affected and non-affected arms during gait are lacking. A further aim was to investigate how gait speed and upper limb function estimated by clinical measures are related to the APS in the stroke group. The APS is the summarized root mean square deviation (RMSD) from normal, based on kinematics. Four arm movements (sagittal and frontal planes) as well as six arm movements (incorporating transversal plane) were included in the calculation of APS, referred to as APS_4 and APS_6, respectively. The study population consisted of 25 persons with stroke and 25 age- and gender-matched controls. The APS measures were significantly different between the affected and non-affected arms, as well as between the affected arm and the non-dominant arm of the controls (p < 0.001). Spasticity significantly influenced both APS measures, while speed only had a significant effect on the APS_4. The APS measures correlated significantly to clinical measures of upper limb function. Both APS measures seem to be useful indices to quantify and discriminate between impaired and normal arm swing during gait after stroke. The variability of rotational arm movements needs to be studied further before considering the additional value of the APS6 over the APS4. When interpreting the APS, complementary kinematics should be taken into account, as the single value of the APS gives no information about the direction of the deviation.
机译：这项研究的目的是将臂姿势评分（APS）应用于中风人群，因为缺乏用于量化步态中受影响和未受影响手臂的手臂摆动的综合措施。另一个目的是研究通过临床测量估计的步态速度和上肢功能与卒中组的APS有何关系。 APS是基于运动学的与法线的汇总均方根偏差（RMSD）。 APS的计算中包括四次手臂运动（矢状面和额面）以及六次手臂运动（包含横向平面），分别称为APS_4和APS_6。研究人群包括25名中风患者和25名年龄和性别匹配的对照组。受影响的和未受影响的手臂之间以及对照组的受影响的手臂和非优势手臂之间的APS度量值均存在显着差异（p <0.001）。痉挛性显着影响两种APS措施，而速度仅对APS_4产生显着影响。 APS量度与上肢功能的临床量度显着相关。两种APS措施似乎都是量化和区分中风后步态中手臂摆动受损和正常摆动的有用指标。在考虑APS6相对于APS4的附加值之前，还需要进一步研究旋转臂运动的可变性。解释APS时，应考虑互补运动学，因为APS的单个值不会提供有关偏差方向的信息。

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