Falla D L, Hess S, Richardson C
Department of Physiotherapy, University of Queensland, Brisbane, Queensland, Australia.
Br J Sports Med. 2003;37(5):430-2. doi: 10.1136/bjsm.37.5.430.
To identify whether subjects with glenohumeral translational instability present with a strength deficit in their internal rotator musculature, and therefore to determine if general strengthening exercises are warranted for the management of this condition.
Eighteen male baseball players were allocated to two groups on the basis of expert clinical evaluation of the presence (n=8) or absence (n=10) of shoulder translational instability. A strain gauge was used to calculate the force generated during maximal isometric internal rotation contractions in neutral shoulder rotation and 30 degrees of internal rotation.
The Mann-Whitney test identified no significant difference in force production during the maximum contractions in neutral rotation between the two subject groups. In the position of 30 degrees shoulder internal rotation, subjects with glenohumeral translational instability produced significantly greater force than the control group (p<0.05).
High load strength testing cannot be used as a diagnostic tool to identify people with glenohumeral instability. Similarly, heavy resistance strengthening exercises for the internal rotator musculature are not warranted during rehabilitation.
确定存在盂肱关节平移不稳定的受试者其内旋肌是否存在力量不足，从而确定对于这种情况进行一般的强化训练是否合理。
根据专家对肩部平移不稳定情况的临床评估，将18名男性棒球运动员分为两组，一组存在肩部平移不稳定（n = 8），另一组不存在（n = 10）。使用应变仪计算在肩部中立旋转和内旋30度时最大等长内旋收缩过程中产生的力量。
曼-惠特尼检验表明，两组受试者在中立旋转最大收缩时的力量产生没有显著差异。在肩部内旋30度的位置，存在盂肱关节平移不稳定的受试者产生的力量明显大于对照组（p<0.05）。
高负荷力量测试不能用作诊断盂肱关节不稳定患者的工具。同样，在内旋肌进行康复训练时，没有必要进行重负荷强化训练。
