Practice effects in bimanual force control: Does age matter?

Vieluf, Solveig, Godde, Ben, Reuter, Eva-Maria, Temprado, Jean-Jacques and Voelcker-Rehage, Claudia (2015) Practice effects in bimanual force control: Does age matter?. Journal of Motor Behavior, 47 1: 57-72. doi:10.1080/00222895.2014.981499

Author Vieluf, Solveig
Godde, Ben
Reuter, Eva-Maria
Temprado, Jean-Jacques
Voelcker-Rehage, Claudia
Title Practice effects in bimanual force control: Does age matter?
Journal name Journal of Motor Behavior   Check publisher's open access policy
ISSN 1940-1027
Publication date 2015-01-09
Year available 2015
Sub-type Article (original research)
DOI 10.1080/00222895.2014.981499
Volume 47
Issue 1
Start page 57
End page 72
Total pages 16
Place of publication Philadelphia, United States
Publisher Routledge
Language eng
Subject 2732 Orthopedics and Sports Medicine
1304 Biophysics
2805 Cognitive Neuroscience
3205 Experimental and Cognitive Psychology
Abstract The authors examined age-related differences in fine motor control during a bimanual coordination task. The task required the modulation of fingertip forces in the precision grip according to a visually presented sinusoidal antiphase pattern (force range 2–12 N; frequency 0.2 Hz). Thirty-four right-handed participants of three age groups (young, early middle-aged, and late middle-aged) practiced 30 trials of the task. Accuracy and variability of relative timing and relative forces at minima and maxima of the sine wave were analyzed for hand–hand and hand–stimulus couplings and compared between age groups. Analysis showed for relative timing and force weaker hand–hand than hand–stimulus coupling as well as lower accuracy and higher variability for minima as compared to maxima. Further, we analyzed practice effects by comparing the first and last trials and characterized the course of practice by detecting the transition of a steeper to a shallower acquisition slope for the different age groups. Late middle-aged participants demonstrated poorer performance than both other groups for all parameters. All groups improved performance to a similar amount. However, an age-related difference in acquisition strategy is visible. Late middle-aged participants seemed to have focused on improvement of force amplitude, whereas young and early middle-aged focused on timing.
Keyword Fine motor control
Bimanual coordination
Motor learning
Precision grip
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Human Movement and Nutrition Sciences Publications
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