Comparison between physical performance tests in Crossfit® practitioners with and without subacromial pain syndrome

Abstract

Introduction: Subacromial Pain Syndrome (SAPS) is considered one of the most common musculoskeletal disorders involving the shoulder. Shoulder pain in overhead athletes is often attributed to sport-specific adaptations, changes in strength, flexibility, and posture, not only in the glenohumeral joint but also along the kinetic chain. Crossfit® is a popular sport with a high prevalence of musculoskeletal disorders, especially in the shoulder region. Therefore, identifying changes in functional performance and physical changes in the shoulder of Crossfit® practitioners can contribute to a greater understanding of the high prevalence of musculoskeletal disorders. Objective: The objective of the present study was to compare the physical performance and clinical measures of the shoulder between Crossfit® practitioners with and without SAPS. Methods: An observational cross-sectional study was carried out in the Crossfit® boxes located in the Metropolitan Region of Rio de Janeiro in 20 participants with SAPS and 23 participants without SAPS, who were assessed the self-reported pain and disability index, the physical performance of the upper quadrant, range of motion and isometric muscle strength of the shoulder. The outcomes were analyzed for possible differences between groups by an independent t-test. Results: There was no statistically significant difference between groups in the upper quarter physical performance test, in the glenohumeral range of motion, nor in the shoulder isometric muscle strength. Conclusion: Crossfit® practitioners with SAPS showed similar upper quadrant physical performance do not present impaired upper quarter physical performance with practitioners without SAPS.