Evidence map›Paper›PMID 32439303›Full record

ArticleBrazilian journal of physical therapy

Investigating the rigour of research findings in experimental studies assessing the effects of breaking up prolonged sitting - extended scoping review.

Coralie English, Ishanka Weerasekara, Anjelica Carlos, Sebastien Chastin, Gary Crowfoot, Claire Fitzsimons, Anne Forster, Elizabeth Holliday, Heidi Janssen, Paul Mackie and 2 more

Abstract readScoping Review
PubMed Full text at PMC Publisher
In one paragraph

Article in Brazilian journal of physical therapy. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

12 authors.

Coralie EnglishSchool of Health Sciences and Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Newcastle, Australia; Centre for Research Excellence in Stroke Recovery and Rehabilitation, Florey Institute of Neuroscience and Hunter Medical Research Institute, Newcastle, Australia. Electronic address: coralie.english@newcastle.edu.au.
Ishanka WeerasekaraSchool of Health Sciences and Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Newcastle, Australia; Department of Physiotherapy, Faculty of Allied Health Sciences, University of Peradeniya, Peradeniya, Sri Lanka.
Anjelica CarlosSchool of Health Sciences and Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Newcastle, Australia; Hunter Stroke Service, Hunter New England Local Health District, Newcastle, Australia.
Sebastien ChastinDepartment of Movement and Sport Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium; School of Health and Life Science, Institute of Applied Health Research, Glasgow Caledonian University, Glasgow, UK.
Gary CrowfootSchool of Health Sciences and Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Newcastle, Australia; Centre for Research Excellence in Stroke Recovery and Rehabilitation, Florey Institute of Neuroscience, Melbourne, Australia.
Claire FitzsimonsPhysical Activity for Health Research Centre, Institute of Sport, Physical Education and Health Sciences, University of Edinburgh, Edinburgh, Scotland, UK.
Anne ForsterAcademic Unit of Elderly Care and Rehabilitation, University of Leeds, Bradford, UK.
Elizabeth HollidaySchool of Medicine and Public Health, The University of Newcastle, Newcastle, Australia.
Heidi JanssenSchool of Health Sciences and Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Newcastle, Australia; Hunter Stroke Service, Hunter New England Local Health District, Newcastle, Australia; Centre for Research Excellence in Stroke Recovery and Rehabilitation, Florey Institute of Neuroscience, Melbourne, Australia.
Paul MackieSchool of Health Sciences and Priority Research Centre for Stroke and Brain Injury, The University of Newcastle, Newcastle, Australia; Centre for Research Excellence in Stroke Recovery and Rehabilitation, Florey Institute of Neuroscience, Melbourne, Australia.
Gillian MeadGeriatric Medicine, Division of Health Sciences, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
David DunstanPhysical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia; Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesSedentary behaviour research is a relatively new field, much of which has emerged since the widespread acceptance of clinical trial registration. The aim of this study was to investigate the trial registration and related issues in studies investigating the effect of frequent activity interruptions to prolonged sitting-time.

methodsSecondary analysis of a scoping review including systematic searches of databases and trial registries. We included experimental studies investigating the effects of frequent activity interruptions to prolonged sitting-time.

resultsWe identified 32 trials published in 45 papers. Only 16 (50%) trials were registered, with all 16 trials being completed and published. Of the unregistered trials, we identified three (19%) for which similarities in the sample size and participant demographics across papers was suggestive of duplicate publication. Identification of potential duplicate publications was difficult for the remaining 13 (81%). Results from 53 (76%) of the 70 registered outcomes were published, but 11 (69%) registered trials reported results from additional outcomes not prospectively registered. A total of 46 different outcomes (out of 53 reported outcome measures, similar measures were collated) were reported across all trials, 31 (67%) of which were collected in ≤2 trials.

conclusionsWe found direct evidence of trial registration issues in experimental trials of breaking up sitting-time. The lack of prospective registration of all trials, and the large number of outcomes measured per trial are key considerations for future research in this field. These issues are unlikely to be confined to the field of sedentary behaviour research.

Indexed as

Sitting PositionDatabases, FactualHumansProspective StudiesRegistriesPhysical activityPublication biasSedentary behaviourSitting-time

Identifiers

PMID32439303
PMCPMC7817869

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.