Day Joseph M, Jones Taylor, Eiben Kayla, Berger Yitz
Department of Physical Therapy, University of Dayton, Fitz Hall, Room 209B 300, College Park Ave, Dayton, OH, 45469, USA.
J Bodyw Mov Ther. 2021 Apr;26:134-140. doi: 10.1016/j.jbmt.2020.12.034. Epub 2021 Feb 6.
Individuals with shoulder and upper extremity pathology often present with altered scapular motion. Few studies have looked at variations in scapular acceleration as a way of quantifying scapular motion. The purpose was to determine the effectiveness of wireless accelerometers for detecting changes in acceleration in individuals with scapular dyskinesis.
MATERIALS/METHODS: Twenty-seven asymptomatic college students (mean age 24 (SD ± 1.54), 65% female, 93% right handed) were visually screened for scapular dyskinesis using previously described criteria. Of the students recruited, fifteen students were determined to have scapular dyskinesis. After securing a wireless accelerometer (MyoResearch 3D DTS) on the dominate scapula, the participants performed five repetitions of standing scaption from 0 to 140°. Linear scapular accelerations along three orthogonal axes (frontal-y, transverse-z, and sagittal-x) were collected. Intraclass correlation coefficients (ICC) were used to determine the between day intra-rater reliability while a one-way analysis of variance was used to determine differences in acceleration between those with and without dyskinesis.
There was good between day intra-rater reliability for the average of all three axes (ICC = 0.79) and for the x and y axes (ICC > 0.78). Reliability was poor (ICC = 0.31) for the z-axis. There was a significant increase in overall acceleration of the scapula in those with dyskinesis (p = .039). There was also a significant increase in acceleration along the y-axis for those with dyskinesis (p = .003) but not for the other axes (p > .16).
Wireless accelerometers reliably quantify scapular acceleration in healthy individuals. In a healthy population with dyskinesis, the overall magnitude of scapular acceleration was greater when compared to a healthy group without dyskinesis.
患有肩部和上肢疾病的个体通常存在肩胛运动的改变。很少有研究将肩胛加速度的变化作为量化肩胛运动的一种方式。本研究的目的是确定无线加速度计在检测肩胛运动障碍个体加速度变化方面的有效性。
材料/方法：使用先前描述的标准对27名无症状大学生（平均年龄24岁（标准差±1.54），65%为女性，93%为右利手）进行肩胛运动障碍的视觉筛查。在招募的学生中，有15名学生被确定患有肩胛运动障碍。在优势肩胛上固定一个无线加速度计（MyoResearch 3D DTS）后，参与者进行了5次从0°到140°的站立位肩外展前屈动作。收集沿三个正交轴（额状面-y、横断面-z和矢状面-x）的线性肩胛加速度。组内相关系数（ICC）用于确定日内评分者间的可靠性，而单因素方差分析用于确定有和没有运动障碍者之间加速度的差异。
所有三个轴的平均值（ICC = 0.79）以及x轴和y轴（ICC > 0.78）的日内评分者间可靠性良好。z轴的可靠性较差（ICC = 0.31）。运动障碍者的肩胛总体加速度有显著增加（p = 0.039）。运动障碍者沿y轴的加速度也有显著增加（p = 0.003），但其他轴没有（p > 0.16）。
无线加速度计能够可靠地量化健康个体的肩胛加速度。在患有运动障碍的健康人群中，与没有运动障碍的健康组相比，肩胛加速度的总体幅度更大。
