Avaliação da perda hídrica corporal e a percepção subjetiva de esforço em praticantes do Muay thai após um estímulo agudo
Avaliação da perda hídrica corporal e a percepção subjetiva de esforço em praticantes do Muay thai após um estímulo agudo
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DOI: https://doi.org/10.22533/at.ed.5292405044
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Palavras-chave: Hidratação, Muay Thai, escala de Borg, sintomatologia de sede, índice de hidratação, desidratação.
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Keywords: Hydration, Muay Thai, Borg scale, thirst symptomatology, hydration index, dehydration.
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Abstract: Muay Thai is a martial art spread across Brazil. Considered an intermittent exercise with moderate to high intensity, it is observed that it promotes an increase in body heat production. To maintain thermal balance, among the many systems that are activated, the body increases the rate of sweating, increasing water loss, which together with other factors can trigger symptoms of dehydration. The present study aims to correlate the level of hydration with the subjective perception of exercise in Muay Thai practitioners. This is a cross-sectional, experimental and explanatory quantitative research. All participants performed two training sessions, with or without hydration. The Borg CR10 scale, the hydration index classification and the subjective thirst symptoms questionnaire were used. An average of 5.94 ± 5.1 (mL/min) was observed in the sweating rate during training without hydration and 0.83 ± 1.66 (mL.min) during training with hydration. Perceived effort was significantly greater in training without hydration. The percentage of weight loss which in training without hydration was 0.43 ± 0.42 (%) was significantly higher compared to training with hydration, which was in the order of 0.06 ± 0.12 (%) (Student's t-test, p <0.01). A positive difference was found between the subjective perception of effort and the sweating rate in training with hydration restrictions. Furthermore, a greater presence of dehydration symptoms among volunteers was observed in training without hydration. It is concluded that there was a higher rate of sweating, weight loss and more symptoms of dehydration in training without hydration, despite this, no significant difference was found between the values of subjective perception of effort during training.
- Raquel de Mattos Correa Marins
- Wagner Coelho
- Ana Carolina de Souza Gonçalves