A multidimensional sensory evaluation model to investigate the (dis)comfort of body parts in a supine sitting position during a lunch break. Issue 3 (March 2023)

• Record Type: Journal Article
• Authors: Fu, You-Lei; Dai, Ruoqi; Xie, Xiaoshun; Song, Wu
• Is Part Of: Heliyon. Volume 9:Issue 3(2023)
• Publication Date: 2023-03
• Subjects: Prototype intervention -- Usability testing -- sEMG -- Supine sitting posture -- Comfort perception; CFA Confirmatory Factor Analysis -- MF median frequency -- MPF mean power frequency -- SCM sternocleidomastoid muscle -- CG control group -- EG experimental group -- F-R fatigue-relief -- A-W ache-well being -- F-S fidgety-safe -- S-R strain-relaxation -- SB-G support bad-good -- TU-S thicknesses unsuit-suit -- SU-S shape unsuit-suit -- TU-S temperature unsuit-suit -- SH side of head -- SN side neck -- SL shoulder -- BH back of head -- BN back of neck -- BC back -- UA upper arm -- EI elbow -- WA waist -- BT buttock; Research -- Periodicals; Medical sciences -- Periodicals; Natural history -- Periodicals; Social sciences -- Periodicals; Earth sciences -- Periodicals; Physical sciences -- Periodicals; 507.2
• DOI: 10.1016/j.heliyon.2023.e13624
• Languages: English
• ISSNs: 2405-8440

Abstract

Abstract: Employees who work long hours frequently complain of muscle fatigue caused by prolonged sitting. As a result, products that assist them when resting in a chair in a reclining position, in order to relieve fatigue and improve comfort are required. To ensure that the new product works as intended, a usability test based on prototyping must be developed. The research process was divided into three stages: firstly, the development of the perception assessment questionnaire; secondly, a validated factor analysis (CFA) was conducted on the perception assessment data of 26 subjects and the measurement model was fitted to verify the reliability and validity of the questionnaire; finally, the sEMG technique was used to verify the comfort level of 21 subjects. Based on usability experiments and an exploration of human factor relationships, this study develops a prototype testing model, which focuses on the comfort perception of body parts, as a means of promoting innovation in the design and manufacturing industry.