可及工作空间反映了面肩肱型肌营养不良症中测力计测量的上肢力量。
Reachable workspace reflects dynamometer-measured upper extremity strength in facioscapulohumeral muscular dystrophy.
作者信息
Han Jay J, De Bie Evan, Nicorici Alina, Abresch Richard T, Bajcsy Ruzena, Kurillo Gregorij
机构信息
Department of Physical Medicine and Rehabilitation, University of California at Davis School of Medicine, 4860 Y Street, Suite 3850, Sacramento, California, 95817, USA.
Department of Electrical Engineering and Computer Sciences, University of California at Berkeley College of Engineering, Berkeley, California, USA.
出版信息
Muscle Nerve. 2015 Dec;52(6):948-55. doi: 10.1002/mus.24651. Epub 2015 Jun 19.
INTRODUCTION
It is not known whether a reduction in reachable workspace closely reflects loss of upper extremity strength in facioscapulohumeral muscular dystrophy (FSHD). In this study we aimed to determine the relationship between reachable workspace and quantitative upper extremity strength measures.
METHODS
Maximal voluntary isometric contraction (MVIC) testing of bilateral elbow flexion and shoulder abduction by hand-held dynamometry was performed on 26 FSHD and 27 control subjects. In addition, Kinect sensor-based 3D reachable workspace relative surface areas (RSAs) were obtained. Loading (500-g weight) effects on reachable workspace were also evaluated.
RESULTS
Quantitative upper extremity strength (MVIC of elbow flexion and shoulder abduction) correlated with Kinect-acquired reachable workspace RSA (R = 0.477 for FSHD, P = 0.0003; R = 0.675 for the combined study cohort, P < 0.0001). Progressive reduction in RSA reflected worsening MVIC measures. Loading impacted the moderately weak individuals the most with additional reductions in RSA.
CONCLUSIONS
Reachable workspace outcome measure is reflective of upper extremity strength impairment in FSHD.
引言
尚不清楚可触及工作空间的减少是否能密切反映面肩肱型肌营养不良症（FSHD）患者上肢力量的丧失。在本研究中，我们旨在确定可触及工作空间与定量上肢力量测量之间的关系。
方法
对26例FSHD患者和27例对照受试者进行手持式测力计双侧肘关节屈曲和肩关节外展的最大自主等长收缩（MVIC）测试。此外，还获得了基于Kinect传感器的3D可触及工作空间相对表面积（RSA）。还评估了负荷（500克重量）对可触及工作空间的影响。
结果
定量上肢力量（肘关节屈曲和肩关节外展的MVIC）与Kinect获取的可触及工作空间RSA相关（FSHD组R = 0.477，P = 0.0003；联合研究队列R = 0.675，P < 0.0001）。RSA的逐渐降低反映了MVIC测量值的恶化。负荷对中度虚弱个体影响最大，RSA进一步降低。
结论
可触及工作空间结果测量反映了FSHD患者的上肢力量损害。
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