Evidence map›Paper›PMID 26274586›Full record

ArticlePloS one2015

Reliability of the Actigraph GT3X+ Accelerometer in Adults under Free-Living Conditions.

Eivind Aadland, Einar Ylvisåker

3 registry-linked trialsOpen access · goldAbstract readEvaluation Study
PubMed Full text at PMC Publisher
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 170 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed, 3 pooled it
41.4field-weighted citation impact, top 1% 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.

NCT03043469 unknown statusnot on this mapstarted 2020, after this paper: background citation

Dysfunctional Breathing: Multidimensional Characterisation and Assessment Tool

TypeobservationalSponsorBrunel UniversityRan2020 to 2021Enrolled141ConditionsRespiration Disorder, Hyperventilation Syndrome, Breathlessness, Breath ShortnessArmsShort-form survey instrument, Demographic data, Hospital Anxiety and Depression Scale, Nijmegen questionnaire, The Self-evaluation of breathing questionnaire
NCT04600713 nawithdrawnnot on this mapstarted 2024, after this paper: background citation

Physiotherapist Led Exercise Within Cardiac Rehabilitation and Inspiratory Muscle Training and Patients With Paroxysmal Atrial Fibrillation - a Randomized Controlled Trial

TypeinterventionalSponsorVastra Gotaland RegionRan2024 to 2028Enrolled0ConditionsAtrial Fibrillation ParoxysmalArmsPT-X and IMT
NCT06283940 narecruitingnot on this mapstarted 2024, after this paper: background citation

Effect of Physiotherapist-led Exercise-based Cardiac Rehabilitation in Older Patients With Aortic Stenosis Who Have Undergone TAVI?

TypeinterventionalSponsorVastra Gotaland RegionRan2024 to 2026Enrolled135ConditionsAortic Valve StenosisArmsPhysiotherapist-led exercise based cardiac rehabilitation (PT-X)
3 · Its place in the literature

Who cites it

170 citing papers in PubMed, 3 syntheses or guidelines pooled it, 319 citations in OpenAlex.

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  17. Factors Associated With Ambulatory Activity in De Novo Parkinson Disease.Journal of neurologic physical therapy : JNPT · 2017
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110 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

2 authors.

Eivind AadlandFaculty of Teacher Education and Sport, Sogn og Fjordane University College, Sogndal, Norway.
Einar YlvisåkerFaculty of Teacher Education and Sport, Sogn og Fjordane University College, Sogndal, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundReliability of the Actigraph GT3X+ accelerometer has not been determined under normal wear time criteria in a large sample of subjects and accelerometer units. The aim of this study was to assess contralateral hip difference and inter-instrument reliability of the Actigraph GT3X+ monitor in adults under long-term free-living conditions.

methodsEighty-seven adult subjects (28 men; mean (standard deviation) age 31.3 (12.2) years; body mass index 23.7 (3.1) kg/m2) concurrently wore two GT3X+ accelerometers (174 units in total) attached to contralateral hips for 21 days. Reliability was assessed using Bland-Altman plots, mixed model regression analyses and absolute measures of agreement for different lengths of data accumulation (single-day-, 7-day- and 21-day periods).

resultsThere were no significant differences between contralateral hips (effect size ≤0.042; p ≥.213). Inter-instrument reliability increased with increased length of data-accumulation. For a 7-day measurement period (n = 232 weeks), limits of agreement were ±68 cpm (vertical axis) and ±81.3 cpm (vector magnitude) for overall physical activity (PA) level, ±51 min for sedentary time, ±18.2 min for light PA, ±6.3 min for moderate PA, ±3.5 min for vigorous PA, and ±6.7 min for moderate-to-vigorous PA.

conclusionsThe Actigraph GT3X+ accelerometer is a reliable tool for measuring PA in adults under free-living conditions using normal data-reduction criteria. Contralateral hip differences are very small. We suggest accelerometers be attached to the right hip and data to be accumulated over several days of measurement.

Indexed as

AccelerometryActigraphyAdultFemaleHipHumansMaleMotor ActivityReproducibility of ResultsSedentary BehaviorYoung Adult

Identifiers

PMID26274586
PMCPMC4537282
OpenAlexW1467761934

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.