Dynamics of forearm muscle activity in slanted computer mice use.
BACKGROUND: Static muscular activity of muscles activated in the use of the conventional PC mouse is believed to represent a higher risk for the musculoskeletal health of the user than dynamic muscular activity. OBJECTIVE: This paper presents a compounded muscular activity dynamics indicator (akin t...
| Publicado en: | Work Vol. 68; no. 1; pp. 123 - 136 |
|---|---|
| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2021
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=148453322&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 148453322 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2021 vid: 68 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 148453322 147566556 148453322 148453322 10.3233/WOR-203242 148453322 ppf: 123 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Dynamics of forearm muscle activity in slanted computer mice use. aug: au: Coelho, Denis A. Lourenço, Miguel L. affil: Department of Supply Chain and Operations Management, School of Engineering, Jönköping University, Jönköping, Sweden sug: subj: Forearm Physiology Muscle, Skeletal Physiology Graphical User Interface Mouse (Computer) Utilization Human Electromyography Task Performance and Analysis Male Female Young Adult Data Analysis Software Analysis of Variance Muscle Contraction Male Female ab: BACKGROUND: Static muscular activity of muscles activated in the use of the conventional PC mouse is believed to represent a higher risk for the musculoskeletal health of the user than dynamic muscular activity. OBJECTIVE: This paper presents a compounded muscular activity dynamics indicator (akin to percent relative range), enabling comparison between computer handheld pointing devices. METHODS: This muscular dynamism approach considers baseline muscular activity (APL, ECR, ECU and ED) relative to the Maximum Voluntary Contraction as well as the dynamics of muscular activation. The latter is computed as the ratio of the difference between APDF90 and APDF10 divided by APDF50 (APDF-Amplitude Probability Distribution Function for the 90th, 50th and 10th percentiles). The paper demonstrates the approach with results of comparative evaluation of a horizontal, a slanted and a vertical PC mouse, through surface EMG monitoring of 20 participants performing standardized graphical task with the devices. RESULTS: Hand size impacts muscular activity dynamics in these four muscles, which supersedes differences in device geometry, across the range of devices tested. CONCLUSION: Smaller devices relative to hand size foster more dynamic muscular activity. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|