Evidence map›Paper›PMID 24279826›Full record

ArticleBMC medical physics2013

Validity of actigraphs uniaxial and triaxial accelerometers for assessment of physical activity in adults in laboratory conditions.

Louise A Kelly, Duncan Ge McMillan, Alexandra Anderson, Morgan Fippinger, Gunnar Fillerup, Jane Rider

2 registry-linked trialsAbstract read
In one paragraph

Article in BMC medical physics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 106 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed, 3 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.

NCT03482570 unknown statusnot on this mapstarted 2018, after this paper: background citation

Activity Behaviours in Patients With Malignant Pleural Effusion: Relationships With Quality of Life, and Respiratory Symptoms, and Survival

TypeobservationalSponsorThe University of Hong KongRan2018 to 2020Enrolled200ConditionsMalignant Pleural EffusionArmsActiGraph
NCT05030948 nacompletednot on this mapstarted 2021, after this paper: background citation

A Physical Activity Intervention to Promote Cognitive Health, Cardiovascular Health and Sleep in Older Latinos

TypeinterventionalSponsorUniversity of PennsylvaniaRan2021 to 2025Enrolled234ConditionsMild Cognitive ImpairmentArmsTiempo Juntos Intervention
3 · Its place in the literature

Who cites it

106 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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46 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

6 authors.

Louise A KellyDepartment of Exercise Science, California Lutheran University, 60 W, Olsen Road, #3400, Thousand Oaks, CA 91360, USA. lakelly@callutheran.edu.
Duncan Ge McMillan
Alexandra Anderson
Morgan Fippinger
Gunnar Fillerup
Jane Rider

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFew studies to date have directly compared the Actigraphs GT1M and the GT3X, it would be of tremendous value to know if these accelerometers give similar information about intensities of PA. Knowing if output is similar would have implications for cross-examination of studies. The purpose of the study was to assess the validity of the GT1M and the GT3X Actigraph accelerometers for the assessment of physical activity against oxygen consumption in laboratory conditions.

methodsForty-two college-aged participants aged 18-25 years wore the GT1M and the GT3X on their right hip during treadmill exercise at three different speeds, slow walking 4.8 km.h-1, fast walking 6.4 km.h-1, and running 9.7 km.h-1). Oxygen consumption was measured minute-by minute using a metabolic system. Bland-Altman plots were used to assess agreement between activity counts from the GT3X and GT1M, and correlations were assessed the ability of the accelerometers to assess physical activity.

resultsBias for 4.8 km.h-1 was 2814.4 cpm (limits 1211.3 to 4417.4), for 6.4 km.h-1 was 3713.6 cpm (limits 1573.2 to 5854.0), and for 9.7 km.h-1 was-3811.2 cpm (limits 842.1 to 6780.3). Correlations between counts per minute for the GT1M and the GT3X were significantly correlated with VO2 (r = 0.881, p < 0.001; r = 0.810, p < 0.001 respectively).

conclusionThe present study showed that both the GT1M and the GT3X accurately measure physical activity when compared to oxygen consumption.

Identifiers

PMID24279826
PMCPMC4175111

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Registered trials

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.