Evaluation of hydration status in military personnel of a battalion in Joinville-SC
Abstract
The infantryman is constantly seeking to perfect his physical fitness for any operations he is assigned to. The evaluation of the hydration state of a battalion's military was carried out in Joinville / SC. This is an observational study. The sample consisted of twenty volunteer male soldiers aged 18 years, from the Nucleus of Preparation of Officers of the Reserve of the 62nd Infantry Battalion of Joinville-SC. The anthropometric data collected were: weight and height, and nutritional status was assessed according to WHO. To evaluate water loss through sweat after training, the dehydration protocol was applied according to the sweat rate formula proposed by the American College of Sports Medicine (2006). Body temperature was measured by pre and post-exercise tympanic temperature using the Welch Allyn Braun Pro 4000 model. Blood pressure and heart rate / min were measured using the Omron-1100 Digital Automatic Arm Artery Blood Pressure Monitor. The result showed that 35% (n = 7) of the military did not consume water before exercise. There was a significant reduction in weight, equivalent to 1.3%. SBP and DBP decreased, while heart rate and pulse rate increased, we noticed results with loss values for maximum sweating of 21.4 ml / min and minimum of 8.3 ml / min. We also found a percentage of water loss in this population, approximately 70% (n = 14) above 1% water loss and only 30% (n = 6) below this percentage, with a maximum value of 2 % of water loss and minimum value of 0.71%. We found an inverse and significant correlation between the thirst scale and the absolute weight variation in kg (R = -0.66, P = 0.002). It was concluded that after the exercise the military showed signs of hypohydration due to insufficient fluid intake during exercise.
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