Shoulder Dynamic Control Ratio and Rotation Range of Motion in Female Junior Elite Handball Players and Controls
| Autor: | Robert van Cingel, Linn Willemsen, Bas Habets, Bart Staal |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
Shoulder Adolescent Rotation Physical Therapy Sports Therapy and Rehabilitation Dynamic control Concentric Healthcare improvement science Radboud Institute for Health Sciences [Radboudumc 18] 03 medical and health sciences Young Adult 0302 clinical medicine All institutes and research themes of the Radboud University Medical Center medicine Eccentric Humans Orthopedics and Sports Medicine Muscle Strength Range of Motion Articular Muscle Skeletal 030222 orthopedics business.industry 030229 sport sciences medicine.disease Outcome parameter Cross-Sectional Studies Muscle imbalance Athletes Isokinetic dynamometer Case-Control Studies Physical therapy Muscle strength Female Range of motion business Sports |
| Zdroj: | Clinical Journal of Sport Medicine, 28, 2, pp. 153-158 Clinical Journal of Sport Medicine, 28, 153-158 |
| ISSN: | 1050-642X |
| Popis: | Objective To compare glenohumeral range of motion and shoulder rotator muscle strength in healthy female junior elite handball players and controls. Design Cross-sectional case-control study. Setting Sports medical center. Participants Forty elite female handball players and 30 controls active in nonoverhead sports participated in this study. Main outcome measures Passive external rotator (ER), internal rotator (IR), and total range of motion (TROM) of the dominant and nondominant arm were examined with a goniometer. An isokinetic dynamometer was used to evaluate concentric and eccentric rotator muscle strength at 60 and 120 degrees/s with dynamic control ratio (DCR = ERecc:IRcon) as the main outcome parameter. Results Except for the ER range of motion in the nondominant arm, no significant differences were found between groups for IR, ER of the dominant arm, and the TROM. Within the handball group, the side-to-side difference for IR of the dominant arm was -1.4 degrees. The ER and the TROM of the dominant arm were significantly larger, 6.3 and 4.9 degrees, respectively. For both groups, the DCR values were above 1 and no significant differences were found between the dominant and nondominant arm. The DCR values in the handball group were significantly lower than in the control group. Conclusions Based on the adopted definitions for muscle imbalance, glenohumeral internal range of motion deficit and TROM deficit our elite female handball players seem not at risk for shoulder injuries. Prospective studies are needed to support the belief that a DCR below 1 places the shoulder at risk for injury. |
| Databáze: | OpenAIRE |
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