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논문 기본 정보

자료유형
학술저널
저자정보
Saulo Cesar Vallin Fabrin (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo) Marcelo Palinkas (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo) Evandro Marianetti Fioco (Claretiano Center University) Guilherme Gallo Costa Gomes (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo) Eloisa Maria Gatti Regueiro (Barão de Mauá Center University) Gabriel Pádua da Silva (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo) Selma Siéssere (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo) Edson Donizetti Verri (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo) Simone Cecilio Hallak Regalo (Department of Basic and Oral Biology School of Dentistry of Ribeirão Preto University of São Paulo)
저널정보
한국운동재활학회 Journal of exercise rehabilitation Journal of exercise rehabilitation Vol.19 No.1
발행연도
2023.2
수록면
67 - 74 (8page)
DOI
10.12965/jer.2244594.297

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CrossFit is a high-intensity training related to physical fitness and respi ratory capacity that can promote changes in lung function. This cross sectional study was aimed at evaluating respiratory muscle strength, electromyographic (EMG) activity, and lung capacity in CrossFit ath letes. Thirty subjects aged between 25 and 35 years were divided into groups: CrossFit athletes (n= 15) and sedentary individuals without co morbidities (n= 15). Respiratory muscle strength was evaluated using maximal inspiratory and expiratory pressures, lung capacity, and EMG of the sternocleidomastoid, serratus anterior, external intercostal, and diaphragm muscles at respiratory rest, maximal inspiration and expira tion, and respiratory cycle. Data were tabulated and subjected to statis tical analyses (t-test and Spearman test, P< 0.05). Respiratory muscle strength on EMG of the sternocleidomastoid, serratus, external inter costal, and diaphragm muscles at the respiratory cycle and maximal forced inspiration and expiration were higher in the CrossFit athletes group than in the sedentary group without comorbidities. CrossFit ath lete group showed significantly strong positive correlation between maximal inspiratory and expiratory muscle strengths (Spearman rho= 0.903, P= 0.000), with increasing muscle strength during inspiration fa voring an increase in strength during expiration. The forced vital capac ity (FVC) and forced expiratory volume in 1 sec (FEV1) also showed a significantly high positive correlation (Spearman rho= 0.912, P= 0.000) in the CrossFit athletes group, showing that higher FVC favors higher FEV1. The results of this study suggest that improved fitness is based on in creased respiratory muscle strength on EMG in CrossFit athletes.

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