运动员
体液
医学
物理疗法
尿比重
血浆渗透压
脱水
肌电图
加压素
尿
物理医学与康复
内科学
化学
体重
生物化学
作者
Rúben Francisco,Filipe Jesus,Catarina L. Nunes,Paulo Santos,Marta Alvim,Francesco Campa,Dale A. Schoeller,Henry C. Lukaski,Gonçalo V. Mendonça,Luís Fernando Cordeiro Bettencourt Sardinha,Analiza Mónica Lopes de Almeida Silva
标识
DOI:10.1017/s0007114524000308
摘要
Abstract We aim to understand the effects of hydration changes on athletes’ neuromuscular performance, on body water compartments, fat-free mass hydration and hydration biomarkers and to test the effects of the intervention on the response of acute dehydration in the hydration indexes. The H2OAthletes study (clinicaltrials.gov ID: NCT05380089) is a randomised controlled trial in thirty-eight national/international athletes of both sexes with low total water intake (WI) (i.e. < 35·0 ml/kg/d). In the intervention, participants will be randomly assigned to the control (CG, n 19) or experimental group (EG, n 19). During the 4-day intervention, WI will be maintained in the CG and increased in the EG (i.e. > 45·0 ml/kg/d). Exercise-induced dehydration protocols with thermal stress will be performed before and after the intervention. Neuromuscular performance (knee extension/flexion with electromyography and handgrip), hydration indexes (serum, urine and saliva osmolality), body water compartments and water flux (dilution techniques, body composition (four-compartment model) and biochemical parameters (vasopressin and Na) will be evaluated. This trial will provide novel evidence about the effects of hydration changes on neuromuscular function and hydration status in athletes with low WI, providing useful information for athletes and sports-related professionals aiming to improve athletic performance.
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