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- Title
Sports drinks do not increase acute kidney injury risk in males during industrial work in the heat when euhydration is maintained, a randomized crossover trial.
- Authors
Atkins, Whitley C.; McKenna, Zachary J.; McDermott, Brendon P.
- Abstract
Industrial workers regularly perform physical labor under high heat stress, which may place them at risk for dehydration and acute kidney injury. Current guidelines recommend that workers should consume sports drinks to maintain euhydration during work shifts. However, the impact of fructose sweetened sports drinks on acute kidney injury risk is unknown. The purpose of this study was to investigate the effects of sports drink consumption on markers of acute kidney injury following simulated industrial work in the heat. Twenty males completed two matched 2 h simulated industrial work trial visits in a warm and humid environment (30 °C and 55% relative humidity). During and following the bout of simulated work, participants consumed either a commercially available sports drink or a noncaloric placebo. Urine and blood samples, collected pre-, post-, and 16 h post-work were assayed for markers of hydration (plasma/urine osmolality, and urine specific gravity) and acute kidney injury (KIM-1 and NGAL). There were no differences in physiological or perceptual responses to the bout of work (interaction p > 0.05 for all indices), and markers of hydration were similar between trials (interaction p > 0.05 for all indices). KIM-1 (Placebo: Δ Ln 1.18 ± 1.64; Sports drink: Δ Ln 1.49 ± 1.10 pg/mL; groupwide d = 0.89, p < 0.001) and NGAL (Placebo: Δ Ln 0.44 ± 1.11; Sports drink: Δ Ln 0.67 ± 1.22 pg/mL; groupwide d = 0.39, p = 0.03) were elevated pre- to post-work, but there were no differences between trials (interaction p > 0.05). These data provide no evidence that consumption of fructose sweetened sports drinks increases the risk of acute kidney injury during physical work in the heat.
- Subjects
MEN; RISK assessment; REPEATED measures design; SPORTS drinks; RESEARCH funding; BLOOD testing; WORK environment; ACUTE kidney failure; RANDOMIZED controlled trials; OSMOLAR concentration; DESCRIPTIVE statistics; HEAT; HYDRATION; SIMULATION methods in education; HUMIDITY; FRUCTOSE; SPECIFIC gravity; URINALYSIS; COMPARATIVE studies; BIOMARKERS; BEVERAGES; INDUSTRIAL hygiene; DISEASE risk factors
- Publication
Applied Physiology, Nutrition & Metabolism, 2024, Vol 49, Issue 6, p844
- ISSN
1715-5312
- Publication type
Article
- DOI
10.1139/apnm-2023-0393