ArticleEuropean journal of applied physiology2020
Autonomic cardiovascular adaptations to acute head-out water immersion, head-down tilt and supine position.
Article in European journal of applied physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effects of weightlessness on the cardiovascular system: a systematic review and meta-analysis.Frontiers in physiology · 2024Pooled it
- A randomized trial of Trendelenburg position for acute moderate ischemic stroke.Nature communications · 2023Trial
- Reduced cerebral blood flow does not alter concurrent or post-intervention inhibitory control: evidence from a 3-h head-down tilt protocol in healthy young adults.Experimental brain research · 2026Article
- Effect of simulated microgravity via head-down tilt on intracranial compliance, brain oscillations and cardiovascular autonomic modulation.Scientific reports · 2025Article
- Short-term microgravity effects simulation does not affect fNIRS measures of cerebral oxygenation changes induced by cognitive load.Frontiers in physiology · 2025Article
- Baroreflex dynamics during the rest to exercise transient in acute normobaric hypoxia in humans.European journal of applied physiology · 2024Article
- Individual Changes in Respiratory Compliance Upon Immersion May Predict Susceptibility to Immersion Pulmonary Edema.Sports medicine - open · 2023Article
- Autonomic Nervous System Adaptation and Circadian Rhythm Disturbances of the Cardiovascular System in a Ground-Based Murine Model of Spaceflight.Life (Basel, Switzerland) · 2023Article
- A century of exercise physiology: key concepts on coupling respiratory oxygen flow to muscle energy demand during exercise.European journal of applied physiology · 2022Review
- Broad individual immersion-scattering of respiratory compliance likely substantiates dissimilar breathing mechanics.Scientific reports · 2021Article
- Diving Responses in Experienced Rebreather Divers: Short-Term Heart Rate Variability in Cold Water Diving.Frontiers in physiology · 2021Article
- Exercise in Water Provides Better Cardiac Energy Efficiency Than on Land.Frontiers in cardiovascular medicine · 2021Article
- Heart Rate Variability During a Standard Dive: A Role for Inspired Oxygen Pressure?Frontiers in physiology · 2021Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThermoneutral head-out water immersion (WI) and 6° head-down tilt (HDT) have been considered as suitable models to increase central blood volume and simulate autonomic cardiovascular adaptations to microgravity, swimming or scuba diving. However, any differences in autonomic cardiovascular adaptations are still unclear. In this study, we hypothesized that WI induces a higher activation of arterial baroreceptors and the parasympathetic system.
methodsTen healthy men underwent 30 min of WI, HDT, and a supine position (SP). RR intervals (RRI) and blood pressure (BP) were continuously monitored. High frequency power (HF), low frequency power (LF) and LF/HF ratio were calculated to study sympathetic and parasympathetic activities, and a spontaneous baroreflex method was used to study arterial baroreflex sensitivity (aBRS). Lung transfer of nitric oxide and carbon monoxide (TLNO/TLCO), vital capacity and alveolar volume (Vc/VA) were measured to study central blood redistribution.
resultsWe observed (1) a similar increase in RRI and decrease in BP; (2) a similar increase in HF power during all experimental conditions, whereas LF increased after; (3) a similar rise in aBRS; (4) a similar increase in Vc/VA and decrease in TLNO/TLCO in all experimental conditions.
conclusionsThese results showed a cardiac parasympathetic dominance to the same extent, underpinned by a similar arterial baroreflex activation during WI and HDT as well as control SP. Future studies may address their association with cold or hyperoxia to assess their ability to replicate autonomic cardiovascular adaptations to microgravity, swimming or scuba diving.
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