Evidence map›Paper›PMID 27152181›Full record

ArticleInternational journal of obesity supplements2015

Reliability of accelerometer-determined physical activity and sedentary behavior in school-aged children: a 12-country study.

T V Barreira, J M Schuna, C Tudor-Locke, J-P Chaput, T S Church, M Fogelholm, G Hu, R Kuriyan, A Kurpad, E V Lambert and 10 more

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of obesity supplements, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.

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  16. Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children.The international journal of behavioral nutrition and physical activity · 2021
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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

20 authors at 5 institutions in 5 countries.

T V BarreiraDepartment of Exercise Science, School of Education, University of Syracuse, Syracuse, NY, USA; Pennington Biomedical Research Center, Baton Rouge, LA, USA.
J M SchunaPennington Biomedical Research Center, Baton Rouge, LA, USA; School of Biological and Population Health Sciences Oregon State University, Corvallis, OR, USA.
C Tudor-LockePennington Biomedical Research Center, Baton Rouge, LA, USA; Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, USA.
J-P ChaputChildren's Hospital of Eastern Ontario Research Institute , Ottawa, Ontario, Canada.
T S ChurchPennington Biomedical Research Center , Baton Rouge, LA, USA.
M FogelholmDepartment of Food and Environmental Sciences, University of Helsinki , Helsinki, Finland.
G HuPennington Biomedical Research Center , Baton Rouge, LA, USA.
R KuriyanSt Johns Research Institute , Bangalore, India.
A KurpadSt Johns Research Institute , Bangalore, India.
E V LambertDepartment of Human Biology, Faculty of Health Sciences, Division of Exercise Science and Sports Medicine, University of Cape Town , Cape Town, South Africa.
C MaherAlliance for Research in Exercise Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia , Adelaide, Australia.
J MaiaCIFI2D, Faculdade de Desporto, University of Porto , Porto, Portugal.
V MatsudoCentro de Estudos do Laboratório de Aptidão Física de São Caetano do Sul (CELAFISCS) , Sao Paulo, Brazil.
T OldsAlliance for Research in Exercise Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia , Adelaide, Australia.
V OnyweraDepartment of Recreation Management and Exercise Science, Kenyatta University , Nairobi, Kenya.
O L SarmientoSchool of Medicine, Universidad de los Andes , Bogota, Colombia.
M StandageDepartment for Health, University of Bath , Bath, UK.
M S TremblayChildren's Hospital of Eastern Ontario Research Institute , Ottawa, Ontario, Canada.
P ZhaoTianjin Women's and Children's Health Center , Tianjin, China.
P T KatzmarzykPennington Biomedical Research Center , Baton Rouge, LA, USA.
Pennington Biomedical Research Center · USChildren's Hospital of Eastern Ontario · CAUniversidad de Los Andes · COUniversity of Bath · GBUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesFocused on the accelerometer-determined physical activity and sedentary time metrics in 9-11-year-old children, we sought to determine the following: (i) number of days that are necessary to achieve reliable estimates (G⩾0.8); (ii) proportion of variance attributed to different facets (participants and days) of reliability estimates; and (iii) actual reliability of data as collected in The International Study of Childhood Obesity, Lifestyle and Environment (ISCOLE).

methodsThe analytical sample consisted of 6025 children (55% girls) from sites in 12 countries. Physical activity and sedentary time metrics measures were assessed for up to 7 consecutive days for 24 h per day with a waist-worn ActiGraph GT3X+. Generalizability theory using R software was used to investigate the objectives i and ii. Intra-class correlation coefficients (ICC) were computed using SAS PROC GLM to inform objective iii.

resultsThe estimated minimum number of days required to achieve a reliability estimate of G⩾0.8 ranged from 5 to 9 for boys and 3 to 11 for girls for light physical activity (LPA); 5 to 9 and 3 to 10, for moderate-to-vigorous physical activity (MVPA); 5 to 10 and 4 to 10 for total activity counts; and 7 to 11 and 6 to 11 for sedentary time, respectively. For all variables investigated, the 'participant' facet accounted for 30-50% of the variability, whereas the 'days' facet accounted for ⩽5%, and the interaction (P × D) accounted for 50-70% of the variability. The actual reliability for boys in ISCOLE ranged from ICCs of 0.78 to 0.86, 0.73 to 0.85 and 0.72 to 0.86 for LPA, MVPA and total activity counts, respectively, and 0.67 to 0.79 for sedentary time. The corresponding values for girls were 0.80-0.88, 0.70-0.89, 0.74-0.86 and 0.64-0.80.

conclusionsIt was rare that only 4 days from all participants would be enough to achieve desirable reliability estimates. However, asking participants to wear the device for 7 days and requiring ⩾4 days of data to include the participant in the analysis might be an appropriate approach to achieve reliable estimates for most accelerometer-derived metrics.

Identifiers

PMID27152181
PMCPMC4850617
OpenAlexW1812787403

What OpenQuestion holds

Textmetadata
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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.