scholarly journals Test-Retest Reliability of Home-Based Fitness Assessments Using a Mobile Application (R Plus Health) in Healthy Adults: A Prospective Quantitative Study (Preprint)

10.2196/28040 ◽  
2021 ◽  
Author(s):  
I-I Lin ◽  
You-Lin Chen ◽  
Li-Ling Chuang
Keyword(s):  
Quantitative Study ◽  
Mobile Application ◽  
Healthy Adults ◽  
Retest Reliability ◽  
Home Based ◽  
Test Retest Reliability

The reliability of home-based fitness assessments on health mobile application in healthy adults (Preprint)

2021 ◽  
Author(s):  
I-I Lin ◽  
You-Lin Chen ◽  
Li-Ling Chuang
Keyword(s):  
Confidence Interval ◽  
Mobile Application ◽  
Healthy Adults ◽  
Physiological Signals ◽  
Health Conditions ◽  
Systematic Bias ◽  
Relative Reliability ◽  
Fitness Assessment ◽  
Balance Tests ◽  
Home Based

BACKGROUND Poor physical fitness has negative impact on health conditions. More and more health-related applications (App) have emerged to reduce burden of medicine, and inconvenience of long distance. However, there were insufficient studies about home-based fitness tests on the app. Insufficient monitor of physiological signals during executing fitness assessment was noted. Therefore, we developed the fitness App incorporating all components of fitness assessments under physiological signals monitor. OBJECTIVE The first aim of study was to investigate the reliability of home-based fitness assessments on health mobile app in healthy adults. Secondly, we aimed to examine and compare the results of fitness assessment on the App. METHODS Thirty-one healthy young adults self-executed fitness assessments on the App for 2 trials in 2-3 day interval. The fitness assessments include cardiorespiratory endurance, strength, flexibility, mobility and balance tests. The intraclass correlation coefficient (ICC) was computed as relative reliability of fitness assessments and determined consistency between 2 trials. The standard error of measurement (SEM), smallest real difference at 90% confidence interval (SRD90), and Bland-Altman analyses were analyzed and used for agreement, sensitivity to real change, and systematic bias detection. RESULTS The relative reliability of fitness assessments was moderate to good (ICCs for raw scores= 0.8 to 0.99, for converting scores= 0.69 to 0.99). The SEM and SRD90 were 1.44 to 6.91 and 3.36 to 16.11, respectively in all fitness assessments. The 95% confidence interval of mean difference indicated no significant systematic error between 2 trials in strength, and balance tests. The Bland-Altman analyses revealed no significant systematic bias between 2 trials for all fitness assessments and few outliers. The Bland-Altman plots illustrated narrow limits of agreement for UE strength, trunk strength, and right leg stance tests, indicating good agreement between 2 trials. CONCLUSIONS Home-based fitness assessments on the health mobile application were reliable and feasible. The results of fitness assessments can offer comprehensive understanding of health conditions and help to prescribe safe and suitable exercise training. CLINICALTRIAL ChiCTR2000030905

Construct validity and test-retest reliability of a free mobile application for spatio-temporal gait analysis in Parkinson’s disease patients

2020 ◽  
Vol 79 ◽  
pp. 86-91
Author(s):  
Sergio Clavijo-Buendía ◽  
Francisco Molina-Rueda ◽  
Patricia Martín-Casas ◽  
Paulina Ortega-Bastidas ◽  
Esther Monge-Pereira ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Construct Validity ◽  
Gait Analysis ◽  
Mobile Application ◽  
Retest Reliability ◽  
Spatio Temporal ◽  
Test Retest Reliability

scholarly journals Test-Retest Reliability of the StepWatch Activity Monitor Outputs in Healthy Adults

2010 ◽  
Vol 7 (5) ◽  
pp. 671-676 ◽  
Author(s):  
Suzie Mudge ◽  
Denise Taylor ◽  
Oliver Chang ◽  
Rosita Wong
Keyword(s):  
Activity Index ◽  
Intraclass Correlation ◽  
Objective Measure ◽  
Activity Monitor ◽  
Healthy Adults ◽  
Peak Activity ◽  
Good Test ◽  
Retest Reliability ◽  
Step Rate ◽  
Test Retest Reliability

Background:Activity Monitors give an objective measure of usual walking performance. This study aimed to examine the test-retest reliability of the StepWatch Activity Monitor outputs (mean steps/day; peak activity index; sustained activity indices of 1, 5, 20, 30, 60 minutes; steps at high, medium, and low stepping rates).Methods:Thirty healthy adults age 18 to 49 years wore the StepWatch for 2 3-day periods at least 1 week apart.Results:The intraclass correlation coefficients of the StepWatch outputs ranged from 0.44 to 0.91 over 3 days. The coefficient of variation ranged from 3.0% to 51.3% over the monitoring periods, with higher variation shown for shorter monitoring periods. The most reliable 5 outputs had 95% limits of agreement between 3-day periods that were less than 40%. These were mean steps/day (±39.1%), highest step rate in 1 (±17.3%) and 5 (±37.4%) minutes, peak activity index (±25.6%), and percentage of inactive time (±9.52%).Conclusions:Mean steps/day, highest step rate in 1 and 5 minutes, peak activity index, and percentage of inactive time have good test-retest reliability over a 3-day monitoring period, with lower reliability shown by the other StepWatch outputs. Monitoring over 1 or 2 days is less reliable.

Test-Retest Reliability and Practice Effects of the Stability Evaluation Test

2017 ◽  
Vol 26 (3) ◽  
Author(s):  
Richelle M. Williams ◽  
Matthew A. Corvo ◽  
Kenneth C. Lam ◽  
Travis A. Williams ◽  
Lesley K. Gilmer ◽  
...  
Keyword(s):  
Postural Control ◽  
Repeated Measures ◽  
Healthy Adults ◽  
Composite Score ◽  
Practice Effects ◽  
Stability Evaluation ◽  
Retest Reliability ◽  
Evaluation Test ◽  
The Stability ◽  
Test Retest Reliability

Context: Postural control plays an essential role in concussion evaluation. The Stability Evaluation Test (SET) aims to objectively analyze postural control by measuring sway velocity on the NeuroCom VSR portable force platform (Natus, San Carlos, CA). Objective: To assess the test-retest reliability and practice effects of the SET protocol. Design: Cohort. Setting: Research laboratory. Patients or Other Participants: 50 healthy adults (20 men, 30 women, age 25.30 ± 3.60 y, height 166.60± 12.80 cm, mass 68.80 ± 13.90 kg). Interventions: All participants completed 4 trials of the SET. Each trial consisted of six 20-s balance tests with eyes closed, under the following conditions: double-leg firm (DFi), single-leg firm (SFi), tandem firm (TFi), double-leg foam (DFo), single-leg foam (SFo), and tandem foam (TFo). Each trial was separated by a 5-min seated rest period. Main Outcome Measures: The dependent variable was sway velocity (deg/s), with lower values indicating better balance. Sway velocity was recorded for each of the 6 conditions as well as a composite score for each trial. Test-retest reliability was analyzed across 4 trials with intraclass correlation coefficients (ICCs). Practice effects analyzed with repeated measures analysis of variance, followed by Tukey post hoc comparisons for any significant main effects (P < .05). Results: Sway-velocity reliability values were good to excellent: DFi (ICC = .88; 95%CI: .81, .92), SFi (ICC = .75; 95%CI: .61, .85), TFi (ICC = .84; 95%CI: .75, .90), DFo (ICC = .83; 95%CI: .74, .90), SFo (ICC = .82; 95%CI: .72, .89), TFo (ICC = .81; 95%CI: .69, .88), and composite score (ICC = .93; 95%CI: .88, .95). Significant practice effects (P < .05) were noted on the SFi, DFo, SFo, TFo conditions and composite scores. Conclusions: Our results suggest the SET has good to excellent reliability for the assessment of postural control in healthy adults. Due to the practice effects noted, a familiarization session is recommended (ie, all 6 conditions) before data are recorded. Future studies should evaluate injured patients to determine meaningful change scores during various injuries.

scholarly journals The test-retest reliability of four functional mobility tests in apparently healthy adults

2016 ◽  
Vol 24 (3) ◽  
pp. 171-179 ◽  
Author(s):  
Matthew J. Northgraves ◽  
Stephen C. Hayes ◽  
Philip Marshall ◽  
Leigh A. Madden ◽  
Rebecca V. Vince
Keyword(s):  
Healthy Adults ◽  
Functional Mobility ◽  
Retest Reliability ◽  
Test Retest Reliability ◽  
Apparently Healthy
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