J Sport Rehabil. 2020 Feb 5;29(6):855-858. doi: 10.1123/jsr.2019-0294. Print 2020 Aug 1.
The latissimus dorsi plays a major role in generating the propulsive force during swimming. In addition, stiffness of this muscle may result in altered stroke biomechanics and predispose swimmers to shoulder pain. Measuring the flexibility of the latissimus dorsi can be of interest to reduce injury. However, the reliability of such measurement has not yet been investigated in competitive swimmers.
To assess the within-session intrarater and interrater reliability of a passive shoulder flexion range of motion measurement for latissimus dorsi flexibility in competitive swimmers.
Within-session intrarater and interrater reliability.
Competitive swimming clubs in Flanders, Belgium.
Twenty-six competitive swimmers (15.46 [2.98] y; 16 men and 10 women).
Each rater performed 2 alternating (eg, left-right-left-right) measurements of passive shoulder flexion range of motion twice, with a 30-second rest period in between.
The intraclass correlation coefficients were calculated to assess intrarater and interrater reliability.
Interrater intraclass correlation coefficient ranged from .54 (95% confidence interval [CI], -.16 to .81) to .57 (95% CI, -.24 to .85). Results for the intrarater reliability ranged from .91 (95% CI, .81 to .96) to .94 (95% CI, .87 to .97).
Results of this study suggest that shoulder flexion range of motion in young competitive swimmers can be measured reliably by a single rater within the same session.
背阔肌在游泳时产生推进力方面起着重要作用。此外，该肌肉的僵硬可能导致划水生物力学发生变化，并使游泳运动员容易出现肩部疼痛。测量背阔肌的柔韧性可能有助于减少受伤。然而，这种测量的可靠性在竞技游泳运动员中尚未得到研究。
评估竞技游泳运动员背阔肌柔韧性的被动肩部前屈活动范围测量在同一测试内的组内和组间可靠性。
同一测试内的组内和组间可靠性。
比利时弗兰德斯的竞技游泳俱乐部。
26 名竞技游泳运动员（15.46 [2.98] 岁；16 名男性和 10 名女性）。
每位评定者进行 2 次交替（例如，左-右-左-右）的被动肩部前屈活动范围测量，两次测量之间休息 30 秒。
计算组内相关系数以评估组内和组间可靠性。
组间的组内相关系数范围为.54（95%置信区间[CI]，-.16 至.81）至.57（95% CI，-.24 至.85）。组内可靠性的结果范围为.91（95% CI，.81 至.96）至.94（95% CI，.87 至.97）。
本研究结果表明，在同一测试内，单个评定者可以可靠地测量年轻竞技游泳运动员的肩部前屈活动范围。
