Evidence map›Paper›PMID 32930988›Full record

Trial reportAging clinical and experimental research2021

Between-day repeatability of sensor-based in-home gait assessment among older adults: assessing the effect of frailty.

Danya Pradeep Kumar, Christopher Wendel, Jane Mohler, Kaveh Laksari, Nima Toosizadeh

Registry-linked trialAbstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Aging clinical and experimental research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01880229 (Phase II and Phase IIB STTR), which is not on this map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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.

NCT01880229 completednot on this map

Phase II and Phase IIB STTR: Portable Device for Telecare Monitoring of Elderly People

Typeobservational_patient_registrySponsorBioSensicsRan2012 to 2018Enrolled180ConditionsFraility, Risk of Falling
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Observational
  4. Graphene-Based Wearable Temperature Sensors: A Review.Nanomaterials (Basel, Switzerland) · 2023
    Review
  5. Article
  6. Article
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

5 authors at 1 institution in 1 country.

Danya Pradeep KumarDepartment of Biomedical Engineering, University of Arizona, Tucson, AZ, 85719, USA.
Christopher WendelDepartment of Medicine, Arizona Center on Aging, University of Arizona, Tucson, AZ, USA.
Jane MohlerDepartment of Biomedical Engineering, University of Arizona, Tucson, AZ, 85719, USA.
Kaveh LaksariDepartment of Biomedical Engineering, University of Arizona, Tucson, AZ, 85719, USA.
Nima ToosizadehDepartment of Biomedical Engineering, University of Arizona, Tucson, AZ, 85719, USA. ntoosizadeh@aging.arizona.edu.
University of Arizona · US

Funding

Phase II STTR: Portable Device for Telecare Monitoring of Elderly PeopleR42AG032748 · NIA · BIOSENSICS, LLC · PI GWIN, JOSEPH T, MOHLER, MARTHA JANE · 2012 to 2016
$2.7M
NIA NIH HHS 2R42AG032748
6 · The paper itself

Abstract

backgroundWhile sensor-based daily physical activity (DPA) gait assessment has been demonstrated to be an effective measure of physical frailty and fall-risk, the repeatability of DPA gait parameters between different days of measurement is not clear.

aimsTo evaluate test-retest reliability (repeatability) of DPA gait performance parameters, representing the quality of walking, and quantitative gait measures (e.g. number of steps) between two separate days of assessment among older adults.

methodsDPA was acquired for 48-h from older adults (age ≥ 65 years) using a tri-axial accelerometer. Continuous walking bouts (≥ 60 s) were identified from acceleration data and used to extract gait performance parameters, including time- and frequency-domain gait parameters, representing walking speed, variability, and irregularity. To assess repeatability, intraclass correlation coefficient (ICC) was calculated using two-way mixed effects F-test models for day-1 vs. day-2 as the independent random effect. Repeatability tests were performed for all participants and also within frailty groups (non-frail and pre-frail/frail identified using Fried phenotype).

resultsData was analyzed from 63 older adults (29 non-frail and 34 pre-frail/frail). Most of the time- and frequency-domain gait performance parameters showed good to excellent repeatability (ICC ≥ 0.70), while quantitative parameters, including number of steps and walking duration showed poor repeatability (ICC < 0.30). Among majority of the gait performance parameters, we observed higher repeatability among the pre-frail/frail group (ICC > 0.78) compared to non-frail individuals (0.39 < ICC < 0.55).

conclusionGait performance parameters, showed higher repeatability compared to quantitative measures. Higher repeatability among pre-frail/frail individuals may be attributed to a reduced functional capacity for performing more intense and variable physical tasks.

trial registrationThe clinical trial was retrospectively registered on June 18th, 2013 with ClinicalTrials.gov, identifier NCT01880229.

Indexed as

FrailtyAgedFrail ElderlyGaitGeriatric AssessmentHumansReproducibility of ResultsWalkingContinuous walkingDaily physical activityFrailtyGait performance parametersRepeatability

Identifiers

PMID32930988
OpenAlexW3085452218

What OpenQuestion holds

Textmetadata
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.