Shoulder overuse injury history is associated with imbalanced strength functional ratio and bilateral asymmetry in overhead male Para athletes in resting and fatigued conditions.
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引用次数: 0
Abstract
Objective: The present study aimed to compare shoulder functional ratio and bilateral strength asymmetry between overhead Para athletes and able-bodied peers, and ascertain whether those factors could be associated with shoulder injury history in Para athletes under resting and fatigued conditions.
Design: Sixteen sitting volleyball Para athletes and 12 able-bodied volleyball players were evaluated. The shoulder functional ratio was measured at rest and after a fatiguing shoulder internal-external rotation exercise on dominant and non-dominant shoulders. Imbalanced muscle strength profiles were identified as a functional ratio < 0.7 and bilateral peak torque asymmetry either >10% or > 15%. All injuries incurred over the past 2-months prior testing were reported.
Results: No injury was surveyed in able-bodied athletes while 9 dominant shoulder overuse injuries were reported in 9 Para athletes. Functional ratio and bilateral asymmetry were not significantly different between groups at rest or after exercise in either shoulder(p > 0.05). Functional ratio < 0.7 and bilateral asymmetry of either >10% or > 15% were statistically associated with shoulder overuse injury history in the dominant limb in Para athletes(p < 0.05), but with a higher relative risk under fatiguing-conditions(p < 0.01).
Conclusion: External rotator muscle conditionning should be implemented in overhead Para athlete regular training to alleviate shoulder imbalance and bilateral asymmetry, especially in fatigued conditions.
期刊介绍:
American Journal of Physical Medicine & Rehabilitation focuses on the practice, research and educational aspects of physical medicine and rehabilitation. Monthly issues keep physiatrists up-to-date on the optimal functional restoration of patients with disabilities, physical treatment of neuromuscular impairments, the development of new rehabilitative technologies, and the use of electrodiagnostic studies. The Journal publishes cutting-edge basic and clinical research, clinical case reports and in-depth topical reviews of interest to rehabilitation professionals.
Topics include prevention, diagnosis, treatment, and rehabilitation of musculoskeletal conditions, brain injury, spinal cord injury, cardiopulmonary disease, trauma, acute and chronic pain, amputation, prosthetics and orthotics, mobility, gait, and pediatrics as well as areas related to education and administration. Other important areas of interest include cancer rehabilitation, aging, and exercise. The Journal has recently published a series of articles on the topic of outcomes research. This well-established journal is the official scholarly publication of the Association of Academic Physiatrists (AAP).