Evidence map›Paper›PMID 25866805›Full record

ArticleBioMed research international2015

The effects of cold and lower body negative pressure on cardiovascular homeostasis.

David J Kean, Corey A Peacock, Gabriel J Sanders, John McDaniel, Lisa A C Colvin, Ellen L Glickman

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In one paragraph

Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Trial
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

6 authors.

David J KeanExercise and Environmental Physiology Laboratory, Kent State University, Kent, OH 44242, USA ; Department of Kinesiology, University of Louisiana at Monroe, 700 University Avenue, Monroe, LA 71209, USA.
Corey A PeacockExercise and Environmental Physiology Laboratory, Kent State University, Kent, OH 44242, USA ; Farquhar College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale-Davie, FL 33314, USA.
Gabriel J SandersExercise and Environmental Physiology Laboratory, Kent State University, Kent, OH 44242, USA ; Department of Kinesiology and Health, Northern Kentucky University, Highland Heights, KY 41099, USA.
John McDanielExercise and Environmental Physiology Laboratory, Kent State University, Kent, OH 44242, USA.
Lisa A C ColvinDepartment of Kinesiology, University of Louisiana at Monroe, 700 University Avenue, Monroe, LA 71209, USA.
Ellen L GlickmanExercise and Environmental Physiology Laboratory, Kent State University, Kent, OH 44242, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study is to determine how cold exposure and lower body negative pressure effected cardiovascular variables.

methodsEleven males (20.3 years ± 2.7) underwent two 20-minute exposures to LBNP. During the 2 trials, the subjects were exposed to cold air (10°C) (COLD) and to ambient temperature (23°C) (AMB). The trials consisted of a 100-minute pre-LBNP period followed by a 20-minute exposure to LBNP and then a 15-minute recovery period. Cardiovascular variables were recorded every 30 minutes using bioimpedance.

resultsWhen LBNP was applied during the AMB trials, stroke volume immediately decreased. During the COLD trial, there was a five-minute delay before the decrease in stroke volume. Heart rate increased immediately after LBNP initiation during the AMB trials but there was a delay in the increase during the COLD trials. That same pattern was followed with mean arterial blood pressures. Cerebral oxygenation was significantly lower throughout the COLD trial as compared to the AMB trials. Six subjects reported symptoms of syncope or presyncope during the AMB trials but there were no reports of symptoms during the COLD trials.

conclusionFrom analysis of this data, cold improved the subject's tolerance to LBNP.

Indexed as

HomeostasisLower Body Negative PressureAdultBlood PressureCardiovascular SystemCold TemperatureHeart RateHumansMaleStroke VolumeSyncope

Identifiers

PMID25866805
PMCPMC4383401

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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.