Differences in motor variability among individuals performing a standardized short-cycle manual task
dc.contributor.author | Sandlund, J. | |
dc.contributor.author | Srinivasan, D. | |
dc.contributor.author | Heiden, M. | |
dc.contributor.author | Mathiassen, Svend | |
dc.date.accessioned | 2018-06-29T12:28:11Z | |
dc.date.available | 2018-06-29T12:28:11Z | |
dc.date.created | 2018-06-29T12:09:02Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Sandlund, J. and Srinivasan, D. and Heiden, M. and Mathiassen, S. 2017. Differences in motor variability among individuals performing a standardized short-cycle manual task. Human Movement Science. 51: pp. 17-26. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/69028 | |
dc.identifier.doi | 10.1016/j.humov.2016.10.009 | |
dc.description.abstract |
� 2016 Elsevier B.V. Motor variability (MV) has been suggested to be a determinant of the risk for developing musculoskeletal disorders in repetitive work. In this study we examined whether individuals consistently differed in the extent of motor variability when performing a standardized short-cycle manual task. On three separate days, arm kinematics was recorded in 14 healthy subjects performing a pipetting task, transferring liquid from a pick-up tube to eight target tubes with a cycle time of 2.8�s. Cycle-to-cycle standard deviations (SD) of a large selection of shoulder and elbow kinematic variables, were processed using principal component analysis (PCA). Thereafter, between-subjects and between-days (within-subject) variance components were calculated using a random effects model for each of four extracted principal components. The results showed that MV differed consistently between subjects (95% confidence intervals of the between-subjects variances did not include zero) and that subjects differed consistently in MV between days. Thus, our results support the notion that MV may be a consistent personal trait, even though further research is needed to verify whether individuals rank consistently in MV even across tasks. If so, MV may be a candidate determinant of the risk of developing fatigue and musculoskeletal disorders in repetitive occupational work. | |
dc.publisher | Elsevier BV; North Holland | |
dc.title | Differences in motor variability among individuals performing a standardized short-cycle manual task | |
dc.type | Journal Article | |
dcterms.source.volume | 51 | |
dcterms.source.startPage | 17 | |
dcterms.source.endPage | 26 | |
dcterms.source.issn | 0167-9457 | |
dcterms.source.title | Human Movement Science | |
curtin.department | School of Physiotherapy and Exercise Science | |
curtin.accessStatus | Fulltext not available |
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