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Occupational wrist postural assessment and monitoring system: development and initial validation

Radin Umar, Radin Zaid and Ling, Chaifong and Abdullasim, Nazreen and Ahmad, Nadiah and Halim, Isa and Abdul Hamid, Abd. Malek (2019) Occupational wrist postural assessment and monitoring system: development and initial validation. Journal of Engineering Science and Technology, 14 (6). pp. 3421-3436. ISSN 1823-4690

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Identification and quantification of poor wrist postures at the occupational setting are generally challenging due to rapid changes in wrist movement. A system prototype was developed to capture and assess wrist postural behaviour at the workplace. This manuscript describes the development and initial validation process of the system prototype. The system prototype utilizes wearable glove attached with Inertia Measurement Unit (IMU) sensors to capture wrist postural behaviours. The postural angle data from sensors were extracted and processed through a customized programming software for visualization purpose. The realtime wrist postural angle data at work is benchmarked and normalized to personal maximum wrist Range of Motion (ROM) data. Preliminary validation compared the wrist postural angle readings between system prototype and traditional goniometer, at 30 for ulnar, radial, flexion, and extension wrist positions. Overall, the results from one sample t-test across 31 subjects indicate statistically no significant differences between the system prototype and goniometer readings at alpha level 0.05 (p-value > 0.05). The results from this preliminary validation activity demonstrate a degree of accuracy in terms of capturing wrist postural angle when being compared to goniometer.

Item Type: Article (Journal)
Additional Information: 4145/79419
Uncontrolled Keywords: Ergonomics; Postural assessment; Range of motion; Wrist posture.
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Dr. Abd Malek Abdul Hamid
Date Deposited: 05 Mar 2020 09:20
Last Modified: 05 Mar 2020 09:20
URI: http://irep.iium.edu.my/id/eprint/79419

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