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首页> 外文期刊>Journal of athletic training >Shoulder-Rotator Strength, Range of Motion, and Acromiohumeral Distance in Asymptomatic Adolescent Volleyball Attackers
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Shoulder-Rotator Strength, Range of Motion, and Acromiohumeral Distance in Asymptomatic Adolescent Volleyball Attackers

机译：无症状青少年排球运动员的肩旋转强度，活动范围和肱肱距离

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Context: Sport-specific adaptations at the glenohumeral joint could occur in adolescent athletes because they start participating in high-performance sports in early childhood. Objective: To investigate shoulder-rotator strength, internal-rotation (IR) and external-rotation (ER) range of motion (ROM), and acromiohumeral distance (AHD) in asymptomatic adolescent volleyball attackers to determine if they have risk factors for injury. Design: Cross-sectional study. Setting: University laboratory. Participants: Thirty-nine adolescent high school-aged volleyball attackers (22 boys, 17 girls; age = 16.0 ± 1.4 years, height = 179.2 ± 9.0 cm, mass = 67.1 ± 10.9 kg, body mass index = 20.7 ± 2.6 kg/m2). Main Outcome Measure(s): Shoulder IR and ER ROM, total-rotation ROM, glenohumeral IR deficit, AHD, and concentric and eccentric strength of the shoulder internal and external rotators were tested bilaterally. Results: External-rotation ROM was greater (t38 = 4.92, P 18°). We observed greater concentric internal-rotator (t38 = 2.89, P = .006) and eccentric external-rotator (t38 = 2.65, P = .01) strength in the dominant than in the nondominant shoulder. The AHD was less in the dominant shoulder (t38 = ?3.60, P < .001). Conclusions: Adolescent volleyball attackers demonstrated decreased IR ROM, total ROM, and AHD and increased ER ROM in their dominant shoulder. Therefore, routine screening of adolescent athletes and designing training programs for hazardous adaptive changes could be important in preventing shoulder injuries.
机译：背景：青少年运动员可能会在盂肱关节处进行运动适应性调整，因为他们从幼儿期就开始参加高性能运动。目的：研究无症状青少年排球运动员的肩旋转肌力量，内旋（IR）和外旋（ER）运动范围（ROM）以及肩肱距离（AHD），以确定他们是否有受伤危险因素。设计：横断面研究。地点：大学实验室。参加者：三十九名高中生青少年排球运动员（男22名，女17名;年龄= 16.0±1.4岁，身高= 179.2±9.0 cm，体重= 67.1±10.9 kg，体重指数= 20.7±2.6 kg / m2 ）。主要观察指标：双侧测试肩部IR和ER ROM，总旋转ROM，盂肱IR缺陷，AHD以及肩部内外旋转体的同心和偏心强度。结果：外部旋转ROM更大（t38 = 4.92，P 18°）。我们观察到，同心的内转子（t38 = 2.89，P = .006）和偏心的外转子（t38 = 2.65，P = .01）的支配强度要高于非支配的肩。优势肩部的AHD较少（t38 =？3.60，P <.001）。结论：青少年排球运动员表现出IR ROM，总ROM和AHD减少，而优势肩部ER ROM增加。因此，对青少年运动员的例行检查和针对危险的适应性变化设计训练计划可能对预防肩部受伤很重要。

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