Effects of an Innovation Chair Armrests on ROSA and Discomfort in the Body

Authors

  • Kunavut Vannajak Assistant Professor, Division of Physical Therapy, Department of Faculty of Allied Health Sciences, Burapha University
  • Pimonpan Taweekarn Assistant Professor, Division of Physical Therapy, Department of Faculty of Allied Health Sciences, Burapha University
  • Wirasinee Srijunto Physical Therapist, Division of Physical Therapy, Department of Faculty of Allied Health Sciences, Burapha University
  • Sudarat Boonpitak Physical Therapist, Division of Physical Therapy, Department of Faculty of Allied Health Sciences, Burapha University

Keywords:

Arm rest, Ergonomic risks, Discomfortable

Abstract

The study aimed to compare the effects of an office chair and an innovative chair with armrests on ergonomic risks and body discomfort. Participants were randomly assigned chairs for initial use. Ergonomic risks were evaluated using the Rapid Office Strain Assessment (ROSA), with ROSA scores and discomfort levels measured before and after a 30-minute typing session on a computer. Following a rest period to recover from fatigue, participants switched chairs, and the procedure was repeated. ROSA scores showed no statistically significant differences within or between groups. However, discomfort levels varied between groups, particularly in the back, elbows, wrists, and hands, with no significant differences noted in the neck and shoulders. The use of the innovation chair armrest may potentially reduce discomfort, thereby aiding in the prevention of musculoskeletal disorders.

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Published

2025-01-15

Issue

Vol. 24 No. 4 (2024)

Section

บทความวิจัย

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