School of Kinesiology and Recreation, Illinois State University, Normal, IL, USA.
J Orthop Sports Phys Ther. 2011 Jun;41(6):400-7. doi: 10.2519/jospt.2011.3292. Epub 2011 Apr 6.
Randomized controlled trial.
To compare a muscle energy technique (MET) for the glenohumeral joint (GHJ) horizontal abductors and an MET for the GHJ external rotators to improve GHJ range of motion (ROM) in baseball players.
Overhead athletes often exhibit loss of GHJ ROM in internal rotation, which has been associated with shoulder pathology. Current stretching protocols aimed at improving flexibility of the posterior shoulder have resulted in inconsistent outcomes. Although utilization of MET has been hypothesized to lengthen tissue, there are limited empirical data describing the effectiveness of such stretches for treating posterior shoulder tightness.
Sixty-one Division I baseball players were randomly assigned to 1 of 3 groups: MET for the GHJ horizontal abductors (n = 19), MET for the GHJ external rotators (n = 22), and control (n = 20). We measured preintervention and postintervention GHJ horizontal adduction and internal rotation ROM, and conducted analyses of covariance, followed by Tukey honestly significant difference post hoc analysis for significant group-by-time interactions (P<.05).
The group treated with the MET for the horizontal abductors had a significantly greater increase in GHJ horizontal adduction ROM postintervention (mean ± SD, 6.8° ± 10.5°) compared to the control group (-1.1° ± 6.8°) (P = .011) and a greater increase in internal rotation ROM postintervention (4.2° ± 5.3°) compared to the group treated with the MET for the external rotators (0.2° ± 6.3°) (P = .020) and the control group (-0.2° ± 4.0°) (P = .029). No significant differences among groups were found for any other variables (P>.05).
A single application of an MET for the GHJ horizontal abductors provides immediate improvements in both GHJ horizontal adduction and internal rotation ROM in asymptomatic collegiate baseball players. Application of MET for the horizontal abductors may be useful to gain ROM in overhead athletes.
Therapy, level 2b-.
随机对照试验。
比较盂肱关节（GHJ）水平外展肌的肌肉能量技术（MET）和 GHJ 外旋肌的 MET，以改善棒球运动员的 GHJ 活动范围（ROM）。
头顶运动员常表现出 GHJ 内旋 ROM 丧失，这与肩部病变有关。目前旨在提高肩部后部柔韧性的伸展方案，结果并不一致。虽然已经假设使用 MET 可以延长组织，但很少有描述这种伸展对治疗肩部后部紧张的有效性的实证数据。
61 名一级棒球运动员被随机分配到 3 组中的 1 组：GHJ 水平外展肌的 MET（n = 19）、GHJ 外旋肌的 MET（n = 22）和对照组（n = 20）。我们测量了干预前和干预后的 GHJ 水平内收和内旋 ROM，并进行了协方差分析，然后进行 Tukey 诚实显著差异事后分析，以检验有显著组间时间交互作用（P<.05）。
接受 GHJ 水平外展肌 MET 治疗的组，干预后 GHJ 水平外展 ROM 显著增加（平均值 ± 标准差，6.8° ± 10.5°），与对照组（-1.1° ± 6.8°）相比（P =.011），并且干预后内部旋转 ROM 显著增加（4.2° ± 5.3°），与接受 GHJ 外旋肌 MET 治疗的组（0.2° ± 6.3°）（P =.020）和对照组（-0.2° ± 4.0°）相比（P =.029）。各组之间的其他变量均无显著差异（P>.05）。
在无症状大学生棒球运动员中，单次应用 GHJ 水平外展肌的 MET 可立即改善 GHJ 水平内收和内旋 ROM。GHJ 水平外展肌的 MET 应用可能有助于获得头顶运动员的 ROM。
治疗，2b 级。
