Medium-Term Effects of Increased Water Intake and Head-Up Sleep on Cardiovascular Health.

ABSTRACT:

Background

Whether medium-term increased water intake alone, or in combination with co-adjuvant nonexercise interventions aimed to expand blood volume (BV), improve the human cardiovascular phenotype and cardiorespiratory fitness remains unexplored.

Objectives

The purpose of this study was to determine the medium-term impact of increased (+40%) fluid (water) intake (IFI) or IFI plus head-up sleep (IFI + HUS) on BV and the cardiovascular phenotype in healthy individuals.

Methods

Healthy adults (n = 35, age 42 ± 18 years, 51% female) matched by sex, age, body composition, physical activity, and cardiorespiratory fitness were randomly allocated to IFI or IFI + HUS for 3 months. Body composition and BV were determined via DXA and indicator-dilution methods. Cardiac fillin

SUBMITTER: Guo M 

PROVIDER: S-EPMC11780084 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature