Comparación del grado de deshidratación entre ejercicios anaeróbicos y ejercicios aeróbicos en un grupo de sujetos físicamente activos

Abstract

Dehydration differences between anaerobic and aerobic exercises in physically active male Objective: dehydration differences between anaerobic and aerobic exercises in physically active males using the sweating rate at the end of each exercise. Method: a self-controlled, crossover pilot study was made with physically active males. The tests were conducted at a 40% VO2max for the aerobic and 80% for the anaerobic with the same caloric expenditure; two sessions were conducted for each type of exercise. The dehydration degree was measured with the sweating rate. The differences between sweating rates were measured using simple and multiple lineal regression models. Results: 15 males were enrolled in the age 29.4 (4.8), with a body fat of 13.3% (2.3) and a VO2max 48.2% (6.9). A higher sweating rate was found in anaerobic exercise (16.2 ± 1.2) compared to aerobic exercise (6.1 ± 0.7), the difference was the same after adjusting body mass index, fat percentage , age and waist circumference (B: 10.1, 95% CI 7.7 to 12.6; p <0.001). Conclusion: In isocaloric conditions, anaerobic exercise generates higher sweat rate than aerobic exercise, this aspects should be considered in prescribing fluid replacement.