Evidence map›Paper›PMID 21998688›Full record

ArticlePloS one2011

Does the fractionalization of daily physical activity (sporadic vs. bouts) impact cardiometabolic risk factors in children and youth?

Rebecca M Holman, Valerie Carson, Ian Janssen

Abstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
–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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  8. Cross-Sectional and Individual Relationships between Physical Activity and Glycemic Variability.Translational journal of the American College of Sports Medicine · 2022
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  12. Active-to-Sedentary Behavior Transitions, Fatigability, and Physical Functioning in Older Adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2019
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  15. Vigorous physical activity patterns affect bone growth during early puberty in boys.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2018
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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

3 authors.

Rebecca M HolmanSchool of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada.
Valerie Carson
Ian Janssen

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

objectiveChildren and youth accumulate their daily moderate-to-vigorous physical activity (MVPA) in bouts (i.e., ≥ 5 consecutive minutes) and in a sporadic manner (i.e., <5 consecutive minutes). The study objective was to determine, within children and youth, whether MVPA accumulated in bouts is more strongly associated with cardiometabolic risk factors than an equivalent volume of MVPA accumulated sporadically.

methodsParticipants consisted of 2754 children and youth aged 6-19 years from the 2003-2006 National Health and Nutrition Examination Survey, a representative cross-sectional study. Bouts and sporadic MVPA were measured objectively over 7 days using Actigraph accelerometers. Thresholds of 5 and 10 consecutive minutes were used to differentiate between bouts and sporadic MVPA. A high cardiometabolic risk factor score (CRS) was created based on measures of waist circumference, non-high-density lipoprotein cholesterol, C-reactive protein, and systolic blood pressure. Associations were examined using logistic regression and controlled for covariates (sex, age, ethnicity, socioeconomic status, dietary fat and sodium, smoking, and accelerometry wear time).

resultsThe odds of a high CRS decreased in a dose-response for both the sporadic and bout MVPA measures. Relative to quartile 1, the odds ratio (95% confidence interval) for a high CRS in quartile 4 was 0.25 (0.10-0.60) for sporadic MVPA, 0.17 (0.09-0.34) for ≥ 5 minute bouts of MVPA, and 0.19 (0.11-0.34) for ≥ 10 minute bouts of MVPA. The sporadic and bout MVPA measures had a similar ability to distinguish between participants with high and normal CRS. Relative to 0 minutes of MVPA, an equivalent number of minutes of sporadic MVPA and bouts of MVPA had an almost identical odds ratio for a high CRS. The findings were consistent for 5 and 10 minute bout thresholds.

conclusionsThe relations between sporadic MVPA and bouts of MVPA with cardiometabolic risk factors were remarkably similar in children and youth.

Indexed as

Cardiovascular DiseasesDiabetes Mellitus, Type 2Motor ActivityAdolescentBlood PressureChildCholesterolC-Reactive ProteinCross-Sectional StudiesData CollectionFemaleHumansMaleRisk FactorsWaist CircumferenceYoung AdultCholesterolC-Reactive Protein

Identifiers

PMID21998688
PMCPMC3187782

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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.