Ellenbecker Todd, Roetert E Paul, Petracek Kristyn, Kovacs Mark, Barajas Natalia, Bailie David
Rehab Plus Sports Therapy Scottsdale, AZ, USA; Vice President Medical Services, ATP Tour, Scottsdale, AZ, USA.
Managing Director of USTA University, United States Tennis Association, Orlando, FL, USA.
Int J Sports Phys Ther. 2022 Aug 1;17(5):863-869. doi: 10.26603/001c.36629. eCollection 2022.
In elite tennis players, musculoskeletal adaptations in the dominant upper extremity have been reported for range of motion, strength, and scapular biomechanics. In addition to scapular dysfunction, tightness and inflexibility of the pectoral musculature have been identified as risk factors for the development of overuse shoulder injury in overhead athletes.
Differences in anterior shoulder position will be identified between the dominant and non-dominant extremity in elite tennis players. The purpose of this study was to examine bilateral differences in anterior shoulder posture measured using a double square in elite tennis players without shoulder injury.
Descriptive Laboratory Study.
Three hundred and six uninjured elite tennis players were measured in the supine position using a double square method to measure anterior shoulder position. The distance from the surface of the table to the anterior most position of the shoulder (in millimeters) was measured bilaterally and compared. A dependent t-test was used to test for significant differences in anterior shoulder position between the dominant and non-dominant extremity.
One hundred thirty-three males and 173 females were included in this study with a mean age of 16.58 years. The mean difference between extremities indicates increased anterior shoulder positioning on the dominant shoulder of 7.65 mm in females, and 8.72 in males. Significantly greater (p<.001) anterior shoulder position measures were documented on the dominant shoulder as compared to the non-dominant shoulder.
The results of this study showed significantly (p<.001) greater anterior shoulder position on the dominant extremity of elite male and female tennis players. The differences of 7-8mm between extremities has clinical application for interpreting anterior shoulder position test results in this population.
在精英网球运动员中，已报道优势上肢在活动范围、力量和肩胛骨生物力学方面存在肌肉骨骼适应性变化。除了肩胛骨功能障碍外，胸肌组织的紧张和僵硬已被确定为上肢运动员过度使用性肩部损伤发生的风险因素。
在精英网球运动员中，优势上肢和非优势上肢之间的前肩位置会存在差异。本研究的目的是在无肩部损伤的精英网球运动员中，使用双正方形测量法检查前肩姿势的双侧差异。
描述性实验室研究。
对306名未受伤的精英网球运动员采用双正方形测量法在仰卧位测量前肩位置。双侧测量从桌面到肩部最前位置的距离（以毫米为单位）并进行比较。使用配对t检验来检验优势上肢和非优势上肢之间前肩位置的显著差异。
本研究纳入了133名男性和173名女性，平均年龄为16.58岁。两侧肢体的平均差异表明，女性优势肩的前肩位置增加了7.65毫米，男性增加了8.72毫米。与非优势肩相比，优势肩的前肩位置测量值显著更大（p<0.001）。
本研究结果显示，精英男女网球运动员优势上肢的前肩位置显著更大（p<0.001）。两侧肢体7-8毫米的差异在解释该人群前肩位置测试结果方面具有临床应用价值。
3级。
