Evidence map›Paper›PMID 23522723›Full record

ArticleClinical biomechanics (Bristol, Avon)2013

Concurrent validation of activity monitors in patients with rheumatoid arthritis.

Michael R Backhouse, Elizabeth M A Hensor, Derrick White, Anne-Maree Keenan, Philip S Helliwell, Anthony C Redmond

Open access · hybridAbstract readControlled Clinical TrialValidation Study
In one paragraph

Article in Clinical biomechanics (Bristol, Avon), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

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  7. Observational
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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

6 authors at 2 institutions in 1 country.

Michael R BackhouseInstitute of Rheumatic and Musculoskeletal Disease, University of Leeds, Leeds, UK. m.r.backhouse@leeds.ac.uk
Elizabeth M A Hensor
Derrick White
Anne-Maree Keenan
Philip S Helliwell
Anthony C Redmond
NIHR Leeds Musculoskeletal Biomedical Research Unit · GBUniversity of Leeds · GB

Funding

Arthritis Research UK 17866Department of Health PDA/03/07/047
6 · The paper itself

Abstract

backgroundPhysical activity is frequently reported in rheumatology but it is difficult to measure objectively outside the gait laboratory. A new generation of activity monitors offers this potential but it has not yet been evaluated in patients with rheumatoid arthritis. This study aimed to evaluate three types of activity monitors in patients with rheumatoid arthritis.

methodsThe Step-N-Tune, Activ4Life Pro V3.8, and the Intelligent Device for Energy Expenditure and Activity activity monitors were tested concurrently in 12 patients with rheumatoid arthritis as well as in a healthy control group of 12 volunteers. Participants walked at a self selected speed for two minutes and were filmed for later review. Temporal and spatial gait parameters were also validated against the GAITRite walkway and the total number of steps recorded by each activity monitor was compared to a gold standard derived from half speed video replays.

findingsActivity monitor performance varied between devices but all showed poorer performance when used in the group with rheumatoid arthritis. Bland-Altman plots demonstrated wider 95% limits of agreement in the group with rheumatoid arthritis and a systematic decrease in agreement between activity monitors and the gold standard with decreasing functional ability.

interpretationDespite some variation between devices, all the activity monitors tested performed reasonably well in healthy young volunteers. All except the Activ4Life showed a marked decrease in performance in patients with rheumatoid arthritis, suggesting Activ4Life could be the most suitable for use in this patient group. The marked between group difference in functional ability, and systematic decrease in device performance with deteriorating gait, indicate that activity monitors require specific validation in target clinical populations.

Indexed as

Activities of Daily LivingAdultArthritis, RheumatoidDiagnostic EquipmentEnergy MetabolismFemaleGaitHumansMaleMiddle AgedMonitoring, AmbulatoryMonitoring, PhysiologicPostureRegression AnalysisWalking

Identifiers

PMID23522723
PMCPMC3677088
OpenAlexW2105460745

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.