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The effect of hypohydration on endothelial function in young healthy adults
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The effect of hypohydration on endothelial function in young healthy adults
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Journal Article
The effect of hypohydration on endothelial function in young healthy adults
2017
Overview
Purpose
Hypohydration has been suggested as a predisposing factor for several pathologies including cardiovascular diseases (CVD). While CVD are the leading cause of death worldwide, no study has investigated whether acute hypohydration affects endothelial function and cardiovascular function.
Methods
Ten young, healthy males participated in this crossover study (age: 24.3 ± 2.3 year; weight: 80.8 ± 5.3 kg; BMI: 24.3 ± 0.4 kg m
−2
). Each subject completed two measurements of endothelial function by flow-mediated dilation (FMD) in euhydrated and hypohydrated state separated by 24 h. Following baseline assessment of hydration status and FMD, the subjects completed 100 min of low-intensity intermittent walking exercise to achieve hypohydration of −2 % of individual body mass. For the rest of the day, a standardized, low water content diet was provided. The following morning, hydration markers and endothelial function were recorded.
Results
Hypohydration by −1.9 ± 0.1 % of body mass resulted in decreased plasma volume by −3.5 ± 1.8 % and increased plasma osmolality by 9 ± 2 mmol kg
−1
(
P
< 0.001). FMD as a response to hypohydration decreased by −26.8 ± 3.9 % (
P
< 0.05).
Conclusion
The data suggested that a small degree of hypohydration induced by moderate exercise and fluid restriction significantly impaired endothelial function.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
/ Adult
/ adults
/ Cardiovascular Diseases - blood
/ Cardiovascular Diseases - etiology
/ Cardiovascular Diseases - physiopathology
/ Chemistry and Materials Science
/ death
/ Dehydration - physiopathology
/ diet
/ Endothelium, Vascular - physiopathology
/ Exercise
/ Female
/ Humans
/ Male
/ males
/ walking
