Precision-dependent changes in motor variability during sustained bimanual reaching
SourceMotor Control, 22, 1, (2018), pp. 28-44
Article / Letter to editor
Display more detailsDisplay less details
SW OZ DCC CO
SubjectAction, intention, and motor control; DI-BCB_DCC_Theme 2: Perception, Action and Control
Movement variability of the upper limb was investigated using a bimanual Fitts' task. Participants tapped rhythmically between target-pairs of different Index of Difficulties (ID) for three intervals of 20 min each. We studied the effects of ID and time-on-task on movement time, end-point variability, approximate entropy and standard deviation of relative phase. Lower ID and time-on-task caused decreasing movement time and increasing end-point variability. Moreover, standard deviation of relative phase and approximate entropy moderately increased. By looking into the long-term effects of a sustained bimanual Fitts' task, this is the first time such movement variability increase is demonstrated in multiple variability indices. The relevance of the findings for future studies on work-related musculoskeletal disorders is being discussed.
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.