Video-based Goniometer Applications for Measuring Knee Joint Angles during Walking in Neurological Patients: A Validity, Reliability and Usability Study

Easy-to-use evaluation of Range Of Motion (ROM) during walking is necessary to make decisions during neurological rehabilitation programs and during follow-up visits in clinical and remote settings. This study discussed goniometer applications (DrGoniometer and Angles - Video Goniometer) that measur...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-02, Vol.23 (4), p.2232
Main Authors: Parati, Monica, Gallotta, Matteo, De Maria, Beatrice, Pirola, Annalisa, Morini, Matteo, Longoni, Luca, Ambrosini, Emilia, Ferriero, Giorgio, Ferrante, Simona
Format: Article
Language:English
Subjects:
Aged
Applications programs
Computer industry
Correlation coefficients
Evaluation
goniometer
Healthy Volunteers
Humans
International economic relations
Joints (anatomy)
Knee
Knee Joint
knee range of motion
Male
Measurement
measurement properties
Middle Aged
Mobile Applications
Parkinson's disease
Reliability analysis
Reproducibility of Results
Smart phones
smartphone
Smartphones
Software
stroke
Stroke patients
usability
Walking
Wireless telephone software
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Summary:Easy-to-use evaluation of Range Of Motion (ROM) during walking is necessary to make decisions during neurological rehabilitation programs and during follow-up visits in clinical and remote settings. This study discussed goniometer applications (DrGoniometer and Angles - Video Goniometer) that measure knee joint ROM during walking through smartphone cameras. The primary aim of the study is to test the inter-rater and intra-rater reliability of the collected measurements as well as their concurrent validity with an electro-goniometer. The secondary aim is to evaluate the usability of the two mobile applications. A total of 22 patients with Parkinson's disease (18 males, age 72 (8) years), 22 post-stroke patients (17 males, age 61 (13) years), and as many healthy volunteers (8 males, age 45 (5) years) underwent knee joint ROM evaluations during walking. Clinicians and inexperienced examiners used the two mobile applications to calculate the ROM, and then rated their perceived usability through the System Usability Scale (SUS). Intraclass correlation coefficients (ICC) and correlation coefficients (corr) were calculated. Both applications showed good reliability (ICC > 0.69) and validity (corr > 0.61), and acceptable usability (SUS > 68). Smartphone-based video goniometers could be used to assess the knee ROM during walking in neurological patients, because of their acceptable degree of reliability, validity and usability.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23042232