The effects of cold exposure (cold water immersion, whole- and partial- body cryostimulation) on cardiovascular and cardiac autonomic control responses in healthy individuals: A systematic review, meta-analysis and meta-regression
Jdidi H, Dugué B, de Bisschop C, Dupuy O, Douzi W
Journal of thermal biology · 21 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
- Meta-analysis (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Funding not disclosed
Publication
- Published
- 2024-04-01 · J Therm Biol · vol. 121 · p. 103857
- Publisher
- Elsevier BV
- Cited
- 27 citations · more than 92% of similar papers · 2.1× the field average
- Impact
- Top 10% most cited in its field
- References
- 77 works
- Access
- Free to read
- Research areas
- Exercise and Physiological Responses · Thermoregulation and physiological responses · Heart Rate Variability and Autonomic Control
- Keywords
- Meta-analysis, Heart rate variability, Medicine, Cardiology, Strictly standardized mean difference, Confidence interval, Internal medicine, Heart rate, Web of science, Blood pressure
- MeSH
- heart, autonomic nervous system, humans, cryotherapy, immersion, blood pressure, heart rate, cold temperature
5 authors
From FR, CA
- Hela Jdidi · correspondingUniversité de Poitiers; Laboratoire Mobilité Vieillissement et Exercice
- Benoît DuguéUniversité de Poitiers; Laboratoire Mobilité Vieillissement et Exercice
- Claire de BisschopUniversité de Poitiers; Laboratoire Mobilité Vieillissement et Exercice
- Olivier DupuyUniversité de Poitiers; Laboratoire Mobilité Vieillissement et Exercice; Université de Montréal
- Wafa DouziUniversité de Poitiers; Laboratoire Mobilité Vieillissement et Exercice
Abstract
Background
Cryostimulation and cold-water immersion (CWI) have recently gained widespread attention due to their association with changes in cardiovascular and cardiac autonomic control responses. Therefore, the aim of the present systematic review and meta-analysis was to identify the global impact of such cold exposures on cardiovascular and cardiac autonomic activity.
Methods
Three databases (PubMed, Embase, Web-of-Science) were used. Studies were eligible for inclusion if they were conducted on healthy participants using cryostimulation and/or CWI. The outcomes included measurements of blood pressure (BP), heart rate (HR), and heart rate variability (HRV) indices: RR interval (RR), Root mean square of successive RR interval differences (RMSSD), low frequency band (LF), high frequency band (HF), and LF/HF ratio.
Results
Among the 27 articles included in our systematic literature review, only 24 were incorporated into the meta-analysis. Our results reveal a significant increase in HRV indices: RMSSD (Standardized mean difference (SMD) = 0.61, p < 0.001), RR (SMD = 0.77, p < 0.001), and HF (SMD = 0.46, p < 0.001), as well as significantly reduced LF (SMD = -0.41, p < 0.001) and LF/HF ratio (SMD = -0.25, p < 0.01), which persisted up to 15 min following cold exposure. Significantly decreased heart rate (SMD = -0.16, p < 0.05), accompanied by slightly increased mean BP (SMD = 0.28, p < 0.001), was also observed. These results seem to depend on individual characteristics and the cooling techniques.
Conclusion
Our meta-analysis suggests that cryostimulation and/or CWI exposure enhance parasympathetic nervous activity. There is scarce scientific literature regarding the effect of individual characteristics on cold-induced physiological responses.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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