Evidence map›Paper›PMID 30940216›Full record

ArticleBMC research notes2019

Coherence and reliability of a wearable inertial measurement unit for measuring postural sway.

Eva Ekvall Hansson, Åsa Tornberg

Abstract read
In one paragraph

Article in BMC research notes, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

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  16. Clinical Usefulness of Retropulsion Tests in Persons with Mild to Moderate Parkinson's Disease.International journal of environmental research and public health · 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

2 authors.

Eva Ekvall HanssonDepartment of Health Sciences/Physiotherapy, Health Science Centre, Lund University, Box 157, 221 00, Lund, Sweden. Eva.ekvall-hansson@med.lu.se.ORCID http://orcid.org/0000-0001-7552-6486
Åsa TornbergDepartment of Health Sciences/Physiotherapy, Health Science Centre, Lund University, Box 157, 221 00, Lund, Sweden.

Funding

VINNOVA 2016-00609
6 · The paper itself

Abstract

objectiveThe aim of this study was to test the coherence of a wearable device, an inertial measurement unit (IMU) against the gold standard; also, to test the intra-trial reliability. This study has a cross-sectional design, where measurement of postural sway in the medio-lateral and anterior-posterior directions was performed simultaneously on a force plate and with a IMU called the Snubblometer ("snubbla" is stumble in Swedish). Thirty-two healthy volunteers participated in the tests.

resultsThe coherence between the IMU and the force plate was 0.84 (strong) in the medio-lateral direction with eyes open (EO) and 0.88 (strong) with eyes closed (EC). The ICC for intra-trial reliability for the IMU varied between 0.50 and 0.67 (moderate to good) with a CV between 17.8 and 22.1% and ICC varied between 0.75 and 0.86 (good) for inter-trial reliability, with an SEM of 0.98 to 1.96 mm/s. We have demonstrated that the IMU was both reliable and highly coherent with golden standard, although the two assessment methods were not interchangeable. The ability to move the balance lab out into real life in the form of a wearable device will provide opportunities to perform research that has not been possible before.

Indexed as

AdultBiomechanical PhenomenaCross-Sectional StudiesFemaleHumansMaleMiddle AgedPostural BalanceReproducibility of ResultsWearable Electronic DevicesYoung AdultBalanceFallsWearable device

Identifiers

PMID30940216
PMCPMC6446366

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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.