Abstract
Strength programs, with few exercises, performed out of the water and in an open kinetic chain seem to have better results in the swimmer’s shoulder prevention. On the other hand, the less activity of serratus anterior (SA) during swimming is an important musculoskeletal risk factor for swimmer’s shoulder. This study aimed to analyze the difference between an elastic band and a weight prevention exercise program in the surface electromyographic (EMG) activity of SA in swimmers. Eight competitive swimmers performed 2 strength programs consisting of 5 exercises each, while the analysis of EMG activity in SA for each exercise was performed. The superficial EMG BioSignalsPlux equipment was used to collect data at a sampling frequency of 1000 Hz. EMG data analysis was made with MATLAB 2020 software, and statistical analysis was performed using IBM SPSS Statistics 27. The differences in EMG activity of SA between the elastic band and the weight were positive to the weight in 4 of the 5 exercises. The preventive exercise program with weights seems to be more effective in the EMG activation of SA. This program produces better strength improvement in SA, which may be important to reduce the impact of this risk factor on the performance of swimmers with shoulder pain.
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Acknowledgements
The authors acknowledge RoboCorp, i2A, the Polytechnic Institute of Coimbra, the Mais Centro Program, and the Center Region Coordination Committee of the EU through the European Regional Development Fund. M.A.C. acknowledges the support of the Centre for Mechanical Engineering, Materials and Processes, CEMMPRE, of the University of Coimbra, which is sponsored by Fundação para a Ciência e Tecnologia (FCT) (UIDB/00285/2020, LA/P/0112/2020).
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Tavares, N., Vilas-Boas, J.P., Castro, M.A. (2023). Difference in the Electromyographic Activity of Serratus Anterior Between Two Preventive Exercise Programs for Swimmer’s Shoulder: Elastic Band Versus Weight. In: Martins Amaro, A., et al. Proceedings of the 10th Congress of the Portuguese Society of Biomechanics. CNB 2023. Lecture Notes in Bioengineering. Springer, Cham. https://doi.org/10.1007/978-3-031-47790-4_19
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