Evidence map›Paper›PMID 32102667›Full record

Trial reportThe international journal of behavioral nutrition and physical activity2020

Cardiorespiratory fitness and accelerometer-determined physical activity following one year of free-living high-intensity interval training and moderate-intensity continuous training: a randomized trial.

M E Jung, S R Locke, J E Bourne, M R Beauchamp, T Lee, J Singer, M MacPherson, J Barry, C Jones, J P Little

Open access · goldAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in The international journal of behavioral nutrition and physical activity, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 pooled it
4.5field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 3 syntheses or guidelines pooled it, 55 citations in OpenAlex.

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  3. Rates of compliance and adherence to high-intensity interval training: a systematic review and Meta-analyses.The international journal of behavioral nutrition and physical activity · 2023
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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

10 authors at 2 institutions in 2 countries.

M E JungSchool of Health and Exercise Sciences Faculty of Health and Social Development, The University of British Columbia Okanagan, FHSD 3333 University Way ART360, Kelowna, BC, V1V 1V7, Canada. Mary.jung@ubc.ca.ORCID 0000-0002-2360-0952
S R LockeSchool of Health and Exercise Sciences Faculty of Health and Social Development, The University of British Columbia Okanagan, FHSD 3333 University Way ART360, Kelowna, BC, V1V 1V7, Canada.
J E BourneThe University of Bristol, Bristol, UK.
M R BeauchampThe University of British Columbia, Vancouver Campus, Vancouver, Canada.
T LeeThe University of British Columbia, Vancouver Campus, Vancouver, Canada.
J SingerThe University of British Columbia, Vancouver Campus, Vancouver, Canada.
M MacPhersonSchool of Health and Exercise Sciences Faculty of Health and Social Development, The University of British Columbia Okanagan, FHSD 3333 University Way ART360, Kelowna, BC, V1V 1V7, Canada.
J BarrySchool of Health and Exercise Sciences Faculty of Health and Social Development, The University of British Columbia Okanagan, FHSD 3333 University Way ART360, Kelowna, BC, V1V 1V7, Canada.
C JonesSchool of Health and Exercise Sciences Faculty of Health and Social Development, The University of British Columbia Okanagan, FHSD 3333 University Way ART360, Kelowna, BC, V1V 1V7, Canada.
J P LittleSchool of Health and Exercise Sciences Faculty of Health and Social Development, The University of British Columbia Okanagan, FHSD 3333 University Way ART360, Kelowna, BC, V1V 1V7, Canada.
University of British Columbia · CAUniversity of Bristol · GB

Funding

CIHR 333266CIHR MSH-141980
6 · The paper itself

Abstract

backgroundFree-living adherence to high-intensity interval training (HIIT) has not been adequately tested. This randomized trial examined changes in cardiorespiratory fitness (CRF) and accelerometer-measured purposeful physical activity over 12 months of free-living HIIT versus moderate-intensity continuous training (MICT).

methodsNinety-nine previously low-active participants with overweight/obesity were randomly assigned to HIIT (n = 47) or MICT (n = 52). Both interventions were combined with evidence-based behaviour change counselling consisting of 7 sessions over 2 weeks. Individuals in HIIT were prescribed 10 X 1-min interval-based exercise 3 times per week (totalling 75 min) whereas individuals in MICT were prescribed 150 min of steady-state exercise per week (50 mins 3 times per week). Using a maximal cycling test to exhaustion with expired gas analyses, CRF was assessed at baseline and after 6 and 12 months of free-living exercise. Moderate-to-vigorous physical activity of 10+ minutes (MVPA10+) was assessed by 7-day accelerometry at baseline, 3, 6, 9, and 12 months. Intention to treat analyses were conducted using linear mixed models.

resultsCRF was improved over the 12 months relative to baseline in both HIIT (+ 0.15 l/min, 95% CI 0.08 to 0.23) and MICT (+ 0.11 l/min, 95% CI 0.05 to 0.18). Both groups improved 12-month MVPA10+ above baseline (HIIT: + 36 min/week, 95% CI 17 to 54; MICT: + 69 min/week, 95% CI 49 to 89) with the increase being greater (by 33 min, 95% CI 6 to 60) in MICT (between group difference, P = 0.018).

conclusionDespite being prescribed twice as many minutes of exercise and accumulating significantly more purposeful exercise, CRF improvements were similar across 12 months of free-living HIIT and MICT in previously low-active individuals with overweight/obesity.

Indexed as

High-Intensity Interval TrainingAccelerometryCardiorespiratory FitnessExerciseExercise TherapyHumansObesityOverweightCardiorespiratory fitnessHealth behaviour changeHigh-intensity interval trainingPhysical activity adherence

Identifiers

PMID32102667
PMCPMC7045584
OpenAlexW3010746755

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.