Relationship between scapular initial position and scapular movement during dynamic motions
Relationship between scapular initial position and scapular movement during dynamic motions
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DOI:
10.1371/journal.pone.0227313
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发表时间:
2019-12-30
期刊:
影响因子:
3.7
通讯作者:
Ichihashi, Noriaki
中科院分区:
文献类型:
--
作者:
Umehara, Jun;Yagi, Masahide;Ichihashi, Noriaki
Optimal scapular position and movement are necessary for normal function of the shoulder joint and it is essential to focus on scapula in the rehabilitation for shoulder disorders. The aim of this study was to discover the relationship between the scapular initial position and scapular movement during dynamic motions in healthy young men. Thirty-four men participated in this study. The scapular angles at initial position and in elevation and lowering during flexion and abduction were measured using an electromagnetic tracking device. The scapular movements from 30 degrees to 120 degrees during flexion and abduction were calculated. Spearmans rank correlation coefficients were used to analyze the relationship between the scapular initial position and scapular movements. For upward rotation and posterior tilt of the scapula, there were significant positive correlations between the scapular initial position and scapular movement during flexion and abduction. For internal rotation, there were significant positive correlations, except 90 degrees in lowering phase and 120 degrees in both phases. While the humeral elevation increased, the correlation coefficients tended to decrease. Except for the internal rotation our results clarified the interactions between the scapular initial position and scapular movement during dynamic motions in healthy young men. The tendency of the decrease in correlation coefficient with elevation angle was shown.