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- Title
A Mechanical Sensor Designed for Dynamic Joint Angle Measurement.
- Authors
Ching, Congo Tak-Shing; Liao, Su-Yu; Cheng, Teng-Yun; Cheng, Chih-Hsiu; Sun, Tai-Ping; Yao, Yan-Dong; Hsiao, Chin-Sung; Chang, Kang-Ming
- Abstract
Background. The measurement of the functional range of motion (FROM) of lower limb joints is an essential parameter for gait analysis especially in evaluating rehabilitation programs. Aim. To develop a simple, reliable, and affordable mechanical goniometer (MGR) for gait analysis, with six-degree freedom to dynamically assess lower limb joint angles. Design. Randomized control trials, in which a new MGR was developed for the measurements of FROM of lower limb joints. Setting. Reliability of the designed MGR was evaluated and validated by a motion analysis system (MAS). Population. Thirty healthy subjects participated in this study. Methods. Reliability and validity of the new MGR were tested by intraclass correlation coefficient (ICC), Bland-Altman plots, and linear correlation analysis. Results. The MGR has good inter- and intrarater reliability and validity with ICC≥0.93 (for both). Moreover, measurements made by MGR and MAS were comparable and repeatable with each other, as confirmed by Bland-Altman plots. Furthermore, a very high degree of linear correlation (R≥0.92 for all joint angle measurements) was found between the lower limb joint angles measured by MGR and MAS. Conclusion. A simple, reliable, and affordable MGR has been designed and developed to aid clinical assessment and treatment evaluation of gait disorders.
- Subjects
GAIT in humans; LEG; REHABILITATION; GONIOMETERS; DETECTORS; ANATOMY
- Publication
Journal of Healthcare Engineering, 2017, p1
- ISSN
2040-2295
- Publication type
Article
- DOI
10.1155/2017/8465212