Study2019Open access

Acute effect of Finnish sauna bathing on brachial artery flow-mediated dilation and reactive hyperemia in healthy middle-aged and older adults

Gravel H, Coombs GB, Behzadi P, Marcoux-Clément V, Barry H, Juneau M, Nigam A, Gagnon D

Physiological reports · 17 citations

How it was studied

Design
Randomized controlled trial (classified by our AI screen)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Government
Canada Foundation for Innovation
Nonprofit
Fondation Institut de Cardiologie de Montréal
University or hospital
Institut de Cardiologie de Montréal
Government
Fonds de Recherche du Québec - Santé
Grants
Canada Foundation for Innovation (35775)

Based on 4 listed funder(s) and full-text disclosure statement.

Publication

Published
2019-07-01 · Physiol Rep · vol. 7 · issue 13 · p. e14166
Publisher
Wiley
Cited
22 citations · more than 75% of similar papers · 1.0× the field average
References
34 works
Access
Open access (journal) · CC-BY
Research areas
Thermoregulation and physiological responses · Cardiovascular Health and Disease Prevention · Climate Change and Health Impacts
Keywords
Medicine, Brachial artery, Reactive hyperemia, Forearm, Crossover study, Bathing, Internal medicine, Cardiology, Blood flow, Surgery, Blood pressure, Pathology
MeSH
brachial artery, humans, hyperemia, steam bath, aging, vasodilation, aged, aged, 80 and over, middle aged, female, male

8 authors

From CA

  • Hugo GravelMontreal Heart Institute; Université de Montréal
  • Geoff B. CoombsUniversity of British Columbia; University of British Columbia, Okanagan Campus
  • Parya BehzadiMontreal Heart Institute; Université de Montréal
  • Virginie Marcoux‐ClémentMontreal Heart Institute; Université de Montréal
  • Hadiatou BarryMontreal Heart Institute; Université de Montréal
  • Martin JuneauMontreal Heart Institute

Abstract

Regular Finnish sauna bathing is associated with a reduced risk of all-cause and cardiovascular mortality in middle-aged and older adults. Potential acute physiological adaptations induced by sauna bathing that underlie this relationship remain to be fully elucidated. The purpose of this study was to determine if typical Finnish sauna sessions acutely improve brachial artery flow-mediated dilation (FMD) and reactive hyperemia (RH) in healthy middle-aged and older adults. Using a randomized crossover design, FMD and RH were evaluated in 21 healthy adults (66 ± 6 years, 10 men/11 women) before and after each of the following conditions: (1) 1 × 10 min of Finnish sauna bathing (80.2 ± 3.2°C, 23 ± 2% humidity); (2) 2 × 10 min of sauna bathing separated by 10 min of rest outside the sauna; (3) a time control period (10 min of seated rest outside the sauna). FMD was taken as the peak change from baseline in brachial artery diameter following 5 min of forearm ischemia, whereas RH was quantified as both peak and area-under-the-curve forearm vascular conductance postischemia. FMD was statistically similar pre to post 1 × 10 min (4.69 ± 2.46 to 5.41 ± 2.64%, P = 0.20) and 2 × 10 min of sauna bathing (4.16 ± 1.79 to 4.55 ± 2.14%, P = 0.58). Peak and area-under-the-curve forearm vascular conductance were also similar following both sauna interventions. These results suggest that typical Finnish sauna bathing sessions do not acutely improve brachial artery FMD and RH in healthy middle-aged and older adults.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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