Evidence map›Paper›PMID 24674977›Full record

ArticleMedicine and science in sports and exercise2014

Effects of substituting sedentary time with physical activity on metabolic risk.

Mark Hamer, Emmanuel Stamatakis, Andrew Steptoe

Abstract read
In one paragraph

Article in Medicine and science in sports and exercise, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing 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

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

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6 more citing papers are in PubMed but not listed here.

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.

Mark Hamer1Physical Activity Research Group, Department of Epidemiology and Public Health, University College London, London, UNITED KINGDOM; 2Psychobiology Group, Department of Epidemiology and Public Health, University College London, London, UNITED KINGDOM; 3Exercise and Sport Sciences, Faculty of Health Sciences, University of Sydney, Sydney, AUSTRALIA; and 4Charles Perkins Centre, University of Sydney, Sydney, AUSTRALIA.
Emmanuel Stamatakis
Andrew Steptoe

Funding

British Heart Foundation RE/10/005/28296British Heart Foundation RG/10/005/28296Medical Research Council MR/K013351/1
6 · The paper itself

Abstract

purposeThe detrimental effects of sedentary time on health may act by replacing time spent in physical activities. The aim of this study was to examine cross-sectional associations between objectively assessed sedentary and physical activity domains and cardiometabolic risk factors using a novel isotemporal substitution paradigm.

methodsParticipants were 445 healthy men and women (mean age, 66 ± 6 yr), without history or objective signs of cardiovascular disease, drawn from the Whitehall II epidemiological cohort. Physical activity was objectively measured using accelerometers (ActiGraph GT3X) worn around the waist during waking hours for 4-7 consecutive days. We examined the effects of replacing sedentary time with light activity or moderate-to-vigorous physical activity (MVPA) on a range of risk factors (HDL cholesterol, triglycerides, HbA1c, and body mass index) using an isotemporal substitution paradigm.

resultsIn partition models, where the time in each of the intensity categories was held constant, only MVPA remained associated with risk factors. In isotemporal substitution models that held total (wear) time constant, replacing 10-min sedentary time with an equal amount of MVPA was associated with favorable effects in all risk factors, including HbA1c (B = -0.023; 95% confidence interval (CI), -0.043 to -0.002), BMI (B = -0.39; 95% CI, -0.54 to -0.24), HDL cholesterol (B = 0.037; 95% CI, 0.021-0.054), and triglycerides (B = -0.035; 95% CI, -0.061 to -0.009).

conclusionsThe associations between sedentary behavior and cardiometabolic risk may be dependent on the types of activities that are displaced by sedentary time.

Indexed as

ExerciseSedentary BehaviorAgedBody Mass IndexCardiovascular DiseasesCholesterol, HDLCohort StudiesCross-Sectional StudiesFemaleGlycated HemoglobinHumansMaleMiddle AgedRisk FactorsTime FactorsTriglyceridesCholesterol, HDLGlycated Hemoglobinhemoglobin A1c protein, humanTriglycerides

Identifiers

PMID24674977
PMCPMC4186723

What OpenQuestion holds

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Read underepoch 390

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.