Evidence map›Paper›PMID 34633293›Full record

Observational studyJournal of medical Internet research2021

Accuracy and Diversity of Wearable Device-Based Gait Speed Measurement Among Older Men: Observational Study.

Min-Gu Kang, Seong-Ji Kang, Hye-Kang Roh, Hwa-Young Jung, Sun-Wook Kim, Jung-Yeon Choi, Kwang-Il Kim

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Journal of medical Internet research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

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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

7 authors at 5 institutions in 1 country.

Min-Gu KangDepartment of Internal Medicine, Chonnam National University Bitgoeul Hospital, Gwangju, Republic of Korea.ORCID 0000-0001-6840-4931
Seong-Ji KangGraduate School of Health Science and Management, Yonsei University, Seoul, Republic of Korea.ORCID 0000-0002-3153-545X
Hye-Kang RohWELT Corp, Ltd, Seoul, Korea, Seoul, Republic of Korea.ORCID 0000-0002-0314-6246
Hwa-Young JungWELT Corp, Ltd, Seoul, Korea, Seoul, Republic of Korea.ORCID 0000-0002-8324-3803
Sun-Wook KimDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.ORCID 0000-0003-1506-7366
Jung-Yeon ChoiDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.ORCID 0000-0001-5139-5346
Kwang-Il KimDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.ORCID 0000-0002-6658-047X
Korea Yakult (South Korea) · KRSeoul National University Bundang Hospital · KRChonnam National University Hospital · KRSeoul National University · KRYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGait speed measurements are widely used in clinical practice, as slow gait is a major predictor of frailty and a diagnostic criterion for sarcopenia. With the development of wearable devices, it is possible to estimate the gait speed in daily life by simply wearing the device.

objectiveThis study aims to accurately determine the characteristics of daily life gait speed and analyze their association with sarcopenia.

methodsWe invited community-dwelling men aged >50 years who had visited the outpatient clinic at a tertiary university hospital to participate in the study. Daily life gait speed was assessed using a wearable smart belt (WELT) for a period of 4 weeks. Data from participants who wore the smart belt for at least 10 days during this period were included. After 4 weeks, data from a survey about medical and social history, usual gait speed measurements, handgrip strength measurements, and dual-energy x-ray absorptiometry were analyzed.

resultsA total of 217,578 daily life gait speed measurements from 106 participants (mean age 71.1, SD 7.6 years) were analyzed. The mean daily life gait speed was 1.23 (SD 0.26) m/s. The daily life gait speed of the participants varied according to the time of the day and day of the week. Daily life gait speed significantly slowed down with age (P<.001). Participants with sarcopenia had significantly lower mean daily life gait speed (mean 1.12, SD 0.11 m/s) than participants without sarcopenia (mean 1.23, SD 0.08 m/s; P<.001). Analysis of factors related to mean daily life gait speed showed that age and skeletal muscle mass of the lower limbs were significantly associated characteristics.

conclusionsMore diverse and accurate information about gait speed can be obtained by measuring daily life gait speed using a wearable device over an appropriate period, compared with one-time measurements performed in a laboratory setting. Importantly, in addition to age, daily life gait speed is significantly associated with skeletal muscle mass of the lower limbs.

Indexed as

SarcopeniaWearable Electronic DevicesAgedGaitHand StrengthHumansMaleWalking Speedgait speedsarcopeniaskeletal muscle masswearable device

Identifiers

PMID34633293
PMCPMC8546531
OpenAlexW3196261613

What OpenQuestion holds

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LicenceCC BY
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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.