Ergonomic arm support prototype device for smartphone users reduces neck and shoulder musculoskeletal loading and fatigue

Copyright © 2021 Elsevier Ltd. All rights reserved..

Smartphone use is a risk factor for both neck and shoulder musculoskeletal disorders. The objective of this study was to evaluate an ergonomic arm support prototype device, which may help improve posture while using a smartphone, by determining its effect on muscle activity, muscle fatigue, and neck and shoulder discomfort. Twenty-four healthy young adult smartphone users performed 20 min of smartphone game playing under two different conditions, smartphone use with support prototype device (i.e. intervention condition) and without (i.e. control condition), while neck and shoulder posture were controlled at 0° neck flexion and 30° shoulder flexion. Activity and fatigue of four muscles were measured using surface electromyography (sEMG), these were: anterior deltoid (AD), cervical erector spinae (CES), upper trapezius (UT) and lower trapezius (LT). The intervention condition showed significantly decreased activity of all muscles. Fatigue of all muscles, except LT, significantly increased over time compared to the start point in the control condition. There was no significant difference in muscle fatigue between each time point in the intervention condition. In conclusion, the ergonomic arm support prototype device can be used as ergonomic intervention to reduce neck and shoulder muscle loading and fatigue.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:95

Enthalten in:

Applied ergonomics - 95(2021) vom: 07. Sept., Seite 103458

Sprache:

Englisch

Beteiligte Personen:

Tapanya, Weerasak [VerfasserIn]
Puntumetakul, Rungthip [VerfasserIn]
Neubert, Manida Swangnetr [VerfasserIn]
Hunsawong, Torkamol [VerfasserIn]
Boucaut, Rose [VerfasserIn]

Links:

Volltext

Themen:

Arm support device
Discomfort score
Electromyography
Journal Article
Muscle activity
Smartphone gaming

Anmerkungen:

Date Completed 18.08.2021

Date Revised 18.08.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.apergo.2021.103458

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM325431604