Evidence map›Paper›PMID 26108674›Full record

ArticleEuropean journal of applied physiology2015

Factors underlying the perception of effort during constant heart rate running above and below the critical heart rate.

Haley C Bergstrom, Terry J Housh, Kristen C Cochrane, Nathaniel D M Jenkins, Jorge M Zuniga, Samuel L Buckner, Jacob A Goldsmith, Richard J Schmidt, Glen O Johnson, Joel T Cramer

Abstract read
PubMed Publisher
In one paragraph

Article in European journal of applied physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
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

10 authors.

Haley C BergstromDepartment of Kinesiology and Health Promotion, University of Kentucky, 221 Seaton Building, Lexington, KY, 40506-0219, USA. hbergstrom@uky.edu.
Terry J HoushDepartment of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
Kristen C CochraneDepartment of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
Nathaniel D M JenkinsDepartment of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
Jorge M ZunigaDepartment of Exercise Science, Creighton University, Omaha, NE, USA.
Samuel L BucknerDepartment of Health, Exercise, and Recreation Management, University of Mississippi, Oxford, MS, USA.
Jacob A GoldsmithDepartment of Exercise and Health Promotion, Florida Atlantic University, Boca Raton, FL, USA.
Richard J SchmidtDepartment of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
Glen O JohnsonDepartment of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
Joel T CramerDepartment of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study examined: (1) the sustainability of the critical heart rate (CHR) minus 5 b min(-1) (CHR - 5) and CHR plus 5 b min(-1) (CHR + 5); (2) the ratings of perceived exertion (RPE), velocity, [Formula: see text], minute ventilation ([Formula: see text]), breathing frequency (f b ), and electromyographic amplitude (EMG AMP) and EMG mean power frequency (MPF) responses during treadmill running at CHR - 5 and CHR + 5 to determine what factors underlie the perception of effort when heart rate (HR) is held constant; and (3) the relationships among RPE, [Formula: see text], and HR, to determine which variable(s) reflect exhaustion during exercise performed at a constant HR.

methodsThe CHR was determined in eight runners (mean ± SD; age = 24 ± 3 years) from a series of four exhaustive, constant velocity runs. The RPE, velocity, [Formula: see text], [Formula: see text], f b , EMG AMP, and EMG MPF responses were recorded during runs at the CHR - 5 and CHR + 5.

resultsAt CHR - 5, RPE, f b, and EMG MPF increased, while velocity, [Formula: see text], [Formula: see text], and EMG AMP decreased. At CHR + 5, RPE and f b increased, velocity, [Formula: see text], [Formula: see text], and EMG AMP decreased, and EMG MPF remained constant.

conclusionsThe close association between f b and RPE throughout the run at CHR - 5 and during the last 50 % of the run at CHR + 5 indicated that muscle afferents may have provided feedback from metabolic and mechanical stimuli that contributed to the perceptual responses. In addition, only RPE consistently indicated exhaustion and the current findings supported its use to monitor exercise performed at a constant HR.

Indexed as

Heart RatePhysical ExertionAdolescentAdultBlood PressureHumansMaleRunningConstant heart rate exerciseCritical heart rateCritical powerCritical velocityRatings of perceived exertion

Identifiers

PMID26108674

What OpenQuestion holds

Textmetadata
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.