A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)

This study quantified the neck posture and fatigue using the flexion relaxation phenomenon (FRP) and craniovertebral angle (CVA); further, it compared the difference between the level of fatigue and neck posture induced by two types of monitors (regular fixed monitor and moving monitor). Twenty-thre...

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Main Authors: Kyeong-Hee Choi, Min-Uk Cho, Chae-Won Park, Seoung-Yeon Kim, Min-Jung Kim, Boram Hong, Yong-Ku Kong
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:International Journal of Environmental Research and Public Health
Subjects:
Online Access:https://www.mdpi.com/1660-4601/17/17/6345
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spelling doaj-eca350e52ce24de0a093583726e969732020-11-25T03:52:11ZengMDPI AGInternational Journal of Environmental Research and Public Health1661-78271660-46012020-08-01176345634510.3390/ijerph17176345A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)Kyeong-Hee Choi0Min-Uk Cho1Chae-Won Park2Seoung-Yeon Kim3Min-Jung Kim4Boram Hong5Yong-Ku Kong6Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Industrial Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Industrial Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Industrial Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Industrial Engineering, Sungkyunkwan University, Suwon 16419, KoreaDOTHEAL Co., Ltd., Suwon 16690, KoreaDepartment of Industrial Engineering, Sungkyunkwan University, Suwon 16419, KoreaThis study quantified the neck posture and fatigue using the flexion relaxation phenomenon (FRP) and craniovertebral angle (CVA); further, it compared the difference between the level of fatigue and neck posture induced by two types of monitors (regular fixed monitor and moving monitor). Twenty-three male participants were classified into two groups—the low-flexion relaxation ratio (FRR) group and the normal-FRR group, depending on the FRR value. All participants performed a document task for 50 min using both types of monitors. It was found that the FRR values significantly decreased after the documentation task. The CVA analysis showed that the moving monitor’s frequency of forward head posture (FHP) was lower than that for the fixed monitor. Overall, the moving monitor worked better than the fixed monitor; this can be interpreted as proof that such monitors can reduce neck fatigue.https://www.mdpi.com/1660-4601/17/17/6345forward head posture (FHP)flexion relaxation phenomenon (FRP)visual display terminal (VDT)neck fatiguecraniovertebral angle (CVA)
collection DOAJ
language English
format Article
sources DOAJ
author Kyeong-Hee Choi
Min-Uk Cho
Chae-Won Park
Seoung-Yeon Kim
Min-Jung Kim
Boram Hong
Yong-Ku Kong
spellingShingle Kyeong-Hee Choi
Min-Uk Cho
Chae-Won Park
Seoung-Yeon Kim
Min-Jung Kim
Boram Hong
Yong-Ku Kong
A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)
International Journal of Environmental Research and Public Health
forward head posture (FHP)
flexion relaxation phenomenon (FRP)
visual display terminal (VDT)
neck fatigue
craniovertebral angle (CVA)
author_facet Kyeong-Hee Choi
Min-Uk Cho
Chae-Won Park
Seoung-Yeon Kim
Min-Jung Kim
Boram Hong
Yong-Ku Kong
author_sort Kyeong-Hee Choi
title A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)
title_short A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)
title_full A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)
title_fullStr A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)
title_full_unstemmed A Comparison Study of Posture and Fatigue of Neck According to Monitor Types (Moving and Fixed Monitor) by Using Flexion Relaxation Phenomenon (FRP) and Craniovertebral Angle (CVA)
title_sort comparison study of posture and fatigue of neck according to monitor types (moving and fixed monitor) by using flexion relaxation phenomenon (frp) and craniovertebral angle (cva)
publisher MDPI AG
series International Journal of Environmental Research and Public Health
issn 1661-7827
1660-4601
publishDate 2020-08-01
description This study quantified the neck posture and fatigue using the flexion relaxation phenomenon (FRP) and craniovertebral angle (CVA); further, it compared the difference between the level of fatigue and neck posture induced by two types of monitors (regular fixed monitor and moving monitor). Twenty-three male participants were classified into two groups—the low-flexion relaxation ratio (FRR) group and the normal-FRR group, depending on the FRR value. All participants performed a document task for 50 min using both types of monitors. It was found that the FRR values significantly decreased after the documentation task. The CVA analysis showed that the moving monitor’s frequency of forward head posture (FHP) was lower than that for the fixed monitor. Overall, the moving monitor worked better than the fixed monitor; this can be interpreted as proof that such monitors can reduce neck fatigue.
topic forward head posture (FHP)
flexion relaxation phenomenon (FRP)
visual display terminal (VDT)
neck fatigue
craniovertebral angle (CVA)
url https://www.mdpi.com/1660-4601/17/17/6345
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