Exploring the role of task on kinematic variability and assessing consistency in individual responses across repetitive manual tasks.
To gain a greater understanding of motor variability (MV) as an individual trait, the effect of task type on MV and individual consistency in MV across three tasks was investigated. Twenty participants performed repetitive carrying, lifting, and simulated sawing tasks. MV was assessed using the line...
| Publicado en: | Ergonomics Vol. 66; no. 6; pp. 749 - 762 |
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| Autores principales: | , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Jun2023
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| 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=163915393&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 163915393 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00140139 ERO jtl: Ergonomics issn: 00140139 maglogo: Y pubinfo: dt: Jun2023 vid: 66 iid: 6 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 163915393 159100152 163915393 163915393 10.1080/00140139.2022.2125178 163915393 ppf: 749 ppct: 13 formats: tig: atl: Exploring the role of task on kinematic variability and assessing consistency in individual responses across repetitive manual tasks. aug: au: Oomen, Nathalie M. C. W. Graham, Ryan B. Fischer, Steven L. affil: Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Canada sug: subj: Kinematics Evaluation Task Performance and Analysis Methods Motor Activity Evaluation Ergonomics Evaluation Human Weight Lifting Cross Sectional Studies Experimental Studies Simulations Descriptive Statistics Analysis of Variance T-Tests Post Hoc Analysis Funding Source ab: To gain a greater understanding of motor variability (MV) as an individual trait, the effect of task type on MV and individual consistency in MV across three tasks was investigated. Twenty participants performed repetitive carrying, lifting, and simulated sawing tasks. MV was assessed using the linear measure of mean point-by-point standard deviation in three-dimensional upper body joint angles. Task type affected MV, where carrying showed higher MV compared to sawing (23–29%) and lifting (12–19%). Furthermore, MV was higher in lifting compared to sawing (12–25%). Poor to moderate individual consistency (ICC = 0.42–0.63) was found across tasks. Task type determined MV and only some support for MV as an individual trait across tasks was found. Based on this work, differences in degrees of freedom afforded by the task influence the opportunity to exploit MV, and possibly individual consistency in MV magnitude is specific to the degrees of freedom afforded by the task. Practitioner summary: In repetitive tasks, movement variability has been proposed as an individual characteristic independent of task characteristics, where repeaters show consistently low variability, while replacers show consistently high variability. In the current study, only moderate support was demonstrated for variability as a consistent individual characteristic across different manual tasks. Abbreviation MV: Motor variability; WRMSDs: Work-related musculoskeletal disorders; DOF: Degrees of freedom; meanSD: Mean standard deviation; SD: Standard deviation; H: Handle (of simulated sawing setup); T: Track (of simulated sawing setup); F: Frame (of simulated sawing setup); ICC: Intraclass correlation; UE: Upper extremity; MMH: Manual material handling; EMG: Electromyography pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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