Evidence map›Paper›PMID 31828479›Full record

Trial reportEuropean journal of applied physiology2020

Prolonged cooling with phase change material enhances recovery and does not affect the subsequent repeated bout effect following exercise.

Susan Y Kwiecien, Denis J O'Hara, Malachy P McHugh, Glyn Howatson

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report 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 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Trial
  2. Review
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  4. Article
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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

4 authors.

Susan Y KwiecienNicholas Institute of Sports Medicine and Athletic Trauma, Lenox Hill Hospital, 210 East 64 Street, 5th Floor, NISMAT, New York, NY, 10065, USA. susan@nismat.org.ORCID http://orcid.org/0000-0002-6683-8127
Denis J O'HaraNicholas Institute of Sports Medicine and Athletic Trauma, Lenox Hill Hospital, 210 East 64 Street, 5th Floor, NISMAT, New York, NY, 10065, USA.
Malachy P McHughNicholas Institute of Sports Medicine and Athletic Trauma, Lenox Hill Hospital, 210 East 64 Street, 5th Floor, NISMAT, New York, NY, 10065, USA.ORCID http://orcid.org/0000-0002-8371-8151
Glyn HowatsonDepartment of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, UK.ORCID http://orcid.org/0000-0001-8494-2043

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this investigation was twofold: (1) to examine the effect of prolonged phase change material (PCM) cooling following eccentric exercise of the quadriceps on indices of muscle damage, and (2) to elucidate whether application of PCM cooling blunted the acute adaptive response to eccentric exercise, known as the repeated bout effect (RBE).

methodsTwenty-six males (25 ± 6 years) performed an initial bout (B1) of 120 eccentric quadriceps contractions on each leg at 90% of their isometric strength and were then randomized to receive PCM packs frozen at 15 °C (treatment) or melted packs (control) worn directly on the skin under shorts for 6 h. The protocol was repeated 14 days later (B2) with all participants receiving the control condition.

resultsPCM cooling provided protection against strength loss in B1 (P = 0.005) with no difference in strength between treatment groups in B2 (P = 0.172; bout by treatment by time P = 0.008). PCM cooling reduced soreness in B1 (P = 0.009) with no difference between treatment groups in B2 (P = 0.061). Soreness was overall lower following B2 than B1 (P < 0.001). CK was elevated in B1 (P < 0.0001) and reduced in B2 (P < 0.001) with no difference between treatments. The damage protocol did not elevate hsCRP in B1, with no difference between treatments or between bouts.

conclusionsThis work provides further evidence that PCM cooling enhances recovery of strength and reduces soreness following eccentric exercise. Importantly, these data show for the first time that prolonged PCM cooling does not compromise the adaptive response associated with the RBE.

Indexed as

CryotherapyExerciseAdaptation, PhysiologicalAdultBiomarkersCreatine KinaseHumansMaleMyalgiaYoung AdultBiomarkersCreatine KinaseAdaptationCryotherapyDelayed onset muscle sorenessExercise-induced muscle damage

Identifiers

PMID31828479

What OpenQuestion holds

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Registered trials

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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.