Faculty of Health Sciences (Kinesiology), Ontario Tech University, Canada; School of Kinesiology and Health Science, York University, Canada.
Faculty of Health Sciences (Kinesiology), Ontario Tech University, Canada.
J Electromyogr Kinesiol. 2024 Oct;78:102920. doi: 10.1016/j.jelekin.2024.102920. Epub 2024 Aug 20.
For the purpose of testing shoulder joint proprioception while controlling for axioscapular muscle recruitment, a novel shoulder thoracohumeral (TH) rotation joint position sense (JPS) measurement device was designed. This device was intended to measure shoulder TH rotation, while also implicitly constraining other upper limb degrees of freedom (DOF) and minimizing cutaneous sensation. The purpose of this study was to determine whether joint motion aside from shoulder TH rotation is being captured by the shoulder JPS measurement device. Upper limb kinematics were collected from 32 participants during joint angle matching trials using the shoulder JPS measurement device. Step wise multiple regression revealed that shoulder TH rotation (β-Humeral Rotation = 0.409, p < 0.001), and wrist deviation (β-Wrist Deviation = 0.104, p = 0.008) both contributed a significant unique variance in the prediction of shoulder JPS measurement device rotation. Findings suggest that seated, unconstrained shoulder TH rotation JPS testing protocols in literature may be confounded by contributions from joints both proximal and distal to the shoulder. Researchers should be aware of the limitations of both constrained and unconstrained shoulder TH rotation JPS testing protocols.
为了在控制肩臂肌募集的情况下测试肩关节本体感觉，设计了一种新型的肩胸肱（TH）旋转关节位置觉（JPS）测量装置。该装置旨在测量肩 TH 旋转，同时隐含地限制其他上肢自由度（DOF）并最小化皮肤感觉。本研究的目的是确定肩 JPS 测量装置是否捕获了除肩 TH 旋转之外的关节运动。在使用肩 JPS 测量装置进行关节角度匹配试验时，从 32 名参与者中收集了上肢运动学数据。逐步多元回归显示，肩 TH 旋转（β-肱骨旋转=0.409，p<0.001）和腕部偏斜（β-腕部偏斜=0.104，p=0.008）都对肩 JPS 测量装置旋转的预测有显著的独特方差贡献。研究结果表明，文献中坐姿、无约束肩 TH 旋转 JPS 测试方案可能受到肩部近端和远端关节的影响。研究人员应该意识到约束和非约束肩 TH 旋转 JPS 测试方案的局限性。
