Evidence map›Paper›PMID 25915642›Full record

ArticlePloS one2015

Head Exposure to Cold during Whole-Body Cryostimulation: Influence on Thermal Response and Autonomic Modulation.

Julien Louis, Karine Schaal, François Bieuzen, Yann Le Meur, Jean-Robert Filliard, Marielle Volondat, Jeanick Brisswalter, Christophe Hausswirth

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 34 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Julien LouisResearch Department, Sport Expertise and Performance (SEP) Laboratory, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France.
Karine SchaalResearch Department, Sport Expertise and Performance (SEP) Laboratory, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France; Sports Performance Laboratory, Sports Medicine Program, University of California Davis, Sacramento, California, United States of America.
François BieuzenResearch Department, Sport Expertise and Performance (SEP) Laboratory, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France.
Yann Le MeurResearch Department, Sport Expertise and Performance (SEP) Laboratory, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France.
Jean-Robert FilliardMedical Department, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France.
Marielle VolondatMedical Department, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France.
Jeanick BrisswalterLaboratory of Human Motricity, Education Sport and Health, University of Nice Sophia Antipolis, Nice, France.
Christophe HausswirthResearch Department, Sport Expertise and Performance (SEP) Laboratory, French National Institute of Sport, Expertise and Performance (INSEP), Paris, France.
Institut National du Sport, de l'Expertise et de la Performance · FRUniversité Côte d'Azur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent research on whole-body cryotherapy has hypothesized a major responsibility of head cooling in the physiological changes classically reported after a cryostimulation session. The aim of this experiment was to verify this hypothesis by studying the influence of exposing the head to cold during whole-body cryostimulation sessions, on the thermal response and the autonomic nervous system (ANS). Over five consecutive days, two groups of 10 participants performed one whole-body cryostimulation session daily, in one of two different systems; one exposing the whole-body to cold (whole-body cryostimulation, WBC), and the other exposing the whole-body except the head (partial-body cryostimulation, PBC).10 participants constituted a control group (CON) not receiving any cryostimulation. In order to isolate the head-cooling effect on recorded variables, it was ensured that the WBC and PBC systems induced the same decrease in skin temperature for all body regions (mean decrease over the 5 exposures: -8.6°C ± 1.3°C and -8.3 ± 0.7°C for WBC and PBC, respectively), which persisted up to 20-min after the sessions (P20). The WBC sessions caused an almost certain decrease in tympanic temperature from Pre to P20 (-0.28 ± 0.11°C), while it only decreased at P20 (-0.14 ± 0.05°C) after PBC sessions. Heart rate almost certainly decreased after PBC (-8.6%) and WBC (-12.3%) sessions. Resting vagal-related heart rate variability indices (the root-mean square difference of successive normal R-R intervals, RMSSD, and high frequency band, HF) were very likely to almost certainly increased after PBC (RMSSD:+49.1%, HF: +123.3%) and WBC (RMSSD: +38.8%, HF:+70.3%). Plasma norepinephrine concentration was likely increased in similar proportions after PBC and WBC, but only after the first session. Both cryostimulation techniques stimulated the ANS with a predominance of parasympathetic tone activation from the first to the fifth session and in slightly greater proportion with WBC than PBC. The main result of this study indicates that the head exposure to cold during whole-body cryostimulation may not be the main factor responsible for the effects of cryostimulation on the ANS.

Indexed as

Cold TemperatureHeadHypothermia, InducedAdultAutonomic Nervous SystemBlood PressureBody Mass IndexBody TemperatureBody WeightCatecholaminesCryotherapyHeart RateHumansMaleMiddle AgedParasympathetic Nervous SystemCatecholamines

Identifiers

PMID25915642
PMCPMC4411165
OpenAlexW2077987855

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.