【摘要】 目的:分析肩胛肌肉失衡(scapular muscle imbalance,SMI)的优秀乒乓球运动员运动员肩关节功能中心(functional joint center,FJC)的特点。方法:选择国家男子乒乓球优秀运动员25人,根据肩胛外向滑动(lateral scapular slide,LSS)测试和手臂与肩关节运动障碍(disabilities of the arm,shoulder and hand,DASH)及DASH运动部分评分分为肩胛失衡组(IA组,12人)和健康组(NA组,13人),另选择年龄、身高和体重与运动员组匹配的15名男性志愿者作为健康对照组(CON组)。采用三维动作分析系统测量所有实验对象优势侧FJC在X轴(内外)、Y轴(上下)和Z轴(前后)三个方向上相对于胸骨上窝参照点的平均位移(mm),分析肩胛骨姿势变化。结果:CON组FJC在内外、上下和前后等方向的位移与NA组相比均无显著性差异(分别为P=0.588,P=0.716,P=0.963)。IA组FJC在内外、上下、前后方向的位移较NA组和CON组均有显著性差异,在X轴上外移(P<0.001),在Y轴上下移(P<0.001),在Z轴上前移(P<0.001)。结论:相比健康乒乓球运动员和健康普通人,肩胛肌肉失衡乒乓球运动员肩胛静息姿势有前、下、外向相对位移。更多还原

【Abstract】 Objective To analyze the characteristics of shoulder functional joint center(FJC) of elite table tennis players with scapular muscle imbalance(SMI).Methods 25 China national male table tennis players received lateral scapular slide(LSS),and disabilities of the arm,shoulder and hand(DASH) tests,thereafter they were divided into shoulder imbalance group(IA,n=12) and shoulder normal group(NA,n=13) in accordance to the results from LSS and DASH tests.15 healthy age-and height-matched volunteers were used as control group(CON).The functional movement of dominant shoulders of all subjects was determined and the data of FJC on X-axis,Y-axis,and Z-axis from reference point were recorded by a 3-dimensional motion analyzer.Results There was no significant difference in shoulder FJC on X,Y,and Z axis(P = 0.588,P = 0.716,and P = 0.963,respectively)between groups CON and NA.A significant exterior,inferior and anterior displacement of FJC appeared in group IA as compared with that in group NA(P < 0.001).Conclusions Compare with healthy players and volunteers,players with SMI had a relatively exterior,inferior and anterior displacement of FJC at rest.更多还原