Martelli G, Ciccarone G, Grazzini G, Signorini M, Urgelli S
Medical and Rehabilitation Center Performance Valdelsa, Poggibonsi, Siena, Italy.
J Sports Med Phys Fitness. 2013 Jun;53(3):283-8.
The aim of the present study was to evaluate, in a group of semi-professional volleyball players, the function of the rotator cuff muscles with a new specific device.
We have studied 30 asymptomatic volleyball players, 15 females and 15 males, all right handed central or lateral spikers, with some specific functional tests. Every subject was evaluated by some common clinical tests to detect shoulder range of motion (ROM) and rotator cuff muscles strength in both sides. Athletes were also submitted to an isometric bilateral shoulder strength test, with a specific upper limb dynamometer (Dynatorq), in three different positions: 1) arm 0° abducted; 2) arm 90° abducted and 90° external rotation, to try to reproduce the spike gesture; 3) arm behind the thorax, as a simulation of clinical lift-off test. All clinical and instrumental data were collected in male and female groups and, in each group, comparisons between dominant and non dominant shoulders.
Our data show in all athletes an initial postero-superior impingement with significant weakness of the subscapularis muscle in the dominant shoulder.
In all overhead athletes, and in particular in volleyball spikers, a pre-clinical diagnosis of lack of strength of the subscapularis muscle in the dominant side, before the occurrence of pain or discomfort signs, could be an important diagnostic aspect to avoid or delay the back-retraction of the joint capsule of the shoulder.
本研究的目的是使用一种新型特定设备，评估一组半职业排球运动员肩袖肌群的功能。
我们研究了30名无症状的排球运动员，其中15名女性和15名男性，均为右利手的中锋或边锋，进行了一些特定的功能测试。通过一些常见的临床测试对每个受试者进行评估，以检测双侧肩部的活动范围（ROM）和肩袖肌群力量。运动员还使用特定的上肢测力计（Dynatorq）在三个不同位置进行了双侧等长肩部力量测试：1）手臂外展0°；2）手臂外展90°且外旋90°，以尝试重现扣球姿势；3）手臂置于胸后，模拟临床抬离试验。所有临床和仪器数据均在男性和女性组中收集，并在每组中对优势肩和非优势肩进行比较。
我们的数据显示，所有运动员均存在初始的后上撞击，优势肩的肩胛下肌明显无力。
在所有过头运动的运动员中，尤其是排球扣球运动员，在出现疼痛或不适迹象之前，对优势侧肩胛下肌力量不足进行临床前诊断，可能是避免或延迟肩关节囊后缩的一个重要诊断方面。
