Repeated Warm Water Immersion Induces Similar Cerebrovascular Adaptations to 8 Weeks of Moderate-Intensity Exercise Training in Females
Bailey TG, Cable NT, Miller GD, Sprung VS, Low DA, Jones H
International journal of sports medicine · 61 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Randomized controlled trial (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Funding not disclosed
Publication
- Published
- 2016-06-10 · Int J Sports Med · vol. 37 · issue 10 · pp. 757–765
- Publisher
- Thieme Medical Publishers (Germany)
- Cited
- 71 citations · more than 88% of similar papers · 2.4× the field average
- References
- 56 works
- Access
- Free to read
- Research areas
- Thermoregulation and physiological responses · Climate Change and Health Impacts · Heart Rate Variability and Autonomic Control
- Keywords
- Medicine, Cardiorespiratory fitness, Thermoregulation, Cardiology, Hyperthermia, Brachial artery, Internal medicine, Endurance training, Vasodilation, Physical therapy, Anesthesia, Blood pressure
- MeSH
- brachial artery, humans, water, exercise, immersion, adaptation, physiological, body temperature regulation, sweating, cerebrovascular circulation, rest, adult, female, young adult
6 authors
From AU, GB, QA
- Tom G. BaileyUniversity of the Sunshine Coast; Liverpool John Moores University
- Nigel Timothy CableUniversity of the Sunshine Coast; Aspire Academy
- George J. MillerUniversity of the Sunshine Coast
- Victoria S. SprungUniversity of Liverpool
- David A. LowUniversity of the Sunshine Coast
- Helen E JonesUniversity of the Sunshine Coast
Abstract
Exercise training has the potential to enhance cerebrovascular function. Warm water immersion has recently been shown to enhance vascular function including the cerebrovascular response to heating. We suggest that passive heating can be used alternatively to exercise. Our aim was to compare the effects of exercise with warm-water immersion training on cerebrovascular and thermoregulatory function. 18 females (25±5 y) performed 8 weeks of cycling (70% HRmax) or warm water immersion (42°C) for 30 min 3 times per week. Brachial artery flow-mediated dilation (FMD) and peak cardiorespiratory fitness (VO2peak) were measured prior to and following both interventions. A passive heat stress was employed to obtain temperature thresholds (Tb) and sensitivities for sweat rate (SR) and cutaneous vasodilation (CVC). Middle cerebral artery velocity (MCAv) was measured throughout. FMD and VO2peak improved following both interventions (p<0.05). MCAv and cerebrovascular conductance were higher at rest and during passive heating (p<0.001 and <0.001, respectively) following both interventions. SR occurred at a lower Tb following both interventions and SR sensitivity also increased, with a larger increase at the chest (p<0.001) following water immersion. CVC occurred at a lower Tb (p<0.001) following both interventions. Warm water immersion elicits similar cerebrovascular, conduit, and thermoregulatory adaptations compared to a period of moderate-intensity exercise training.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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