Effects of aging on motor control strategies during bimanual isometric force control

Yan Jin; Ji Won Seong; Young Chae Cho; Bum Chul Yoon

doi:10.1177/1059712319849896

Effects of aging on motor control strategies during bimanual isometric force control

Yan Jin, Ji Won Seong, Young Chae Cho, Bum Chul Yoon

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Aging-induced degeneration of the neuromuscular system would result in deteriorated complex muscle force coordination and difficulty in executing daily activities that require both hands. The aim of this study was to provide a basic description of how aging and dual-task activity would affect the motor control strategy during bimanual isometric force control in healthy adults. In total, 17 young adults (aged 25.1 ± 2.4 years) and 14 older adults (aged 72.6 ± 3.4 years) participated in the study. The subjects were instructed to press both hands simultaneously to match the 1 Hz sine curve force under two conditions (with or without calculation) with continuous visual feedback. Differences in bimanual motor synergy, bimanual coordination, force accuracy, force variability, and calculation speed were compared. This study found that the specific motor control strategy of older adults involved a decreased bimanual force control ability with both increased V_UCM and V_ORT, and was not influenced by dual tasking. These findings might have implications for establishing interventions for aging-induced hand force control deficits.

Original language	English
Pages (from-to)	267-275
Number of pages	9
Journal	Adaptive Behavior
Volume	27
Issue number	4
DOIs	https://doi.org/10.1177/1059712319849896
Publication status	Published - 2019 Aug 1

Bibliographical note

Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was supported by a grant from a mid-level research project through the National Research Foundation of Korea (2017R1C1B5018171), funded by the Ministry of Health.

Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This research was supported by a grant from a midlevel research project through the National Research Foundation of Korea (2017R1C1B5018171), funded by the Ministry of Health.

Publisher Copyright:
© The Author(s) 2019.

Keywords

Aging
bimanual force matching
bimanual motor synergy
dual task
uncontrolled manifold

ASJC Scopus subject areas

Experimental and Cognitive Psychology
Behavioral Neuroscience

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10.1177/1059712319849896

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title = "Effects of aging on motor control strategies during bimanual isometric force control",

abstract = "Aging-induced degeneration of the neuromuscular system would result in deteriorated complex muscle force coordination and difficulty in executing daily activities that require both hands. The aim of this study was to provide a basic description of how aging and dual-task activity would affect the motor control strategy during bimanual isometric force control in healthy adults. In total, 17 young adults (aged 25.1 ± 2.4 years) and 14 older adults (aged 72.6 ± 3.4 years) participated in the study. The subjects were instructed to press both hands simultaneously to match the 1 Hz sine curve force under two conditions (with or without calculation) with continuous visual feedback. Differences in bimanual motor synergy, bimanual coordination, force accuracy, force variability, and calculation speed were compared. This study found that the specific motor control strategy of older adults involved a decreased bimanual force control ability with both increased VUCM and VORT, and was not influenced by dual tasking. These findings might have implications for establishing interventions for aging-induced hand force control deficits.",

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author = "Yan Jin and Seong, {Ji Won} and Cho, {Young Chae} and Yoon, {Bum Chul}",

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N2 - Aging-induced degeneration of the neuromuscular system would result in deteriorated complex muscle force coordination and difficulty in executing daily activities that require both hands. The aim of this study was to provide a basic description of how aging and dual-task activity would affect the motor control strategy during bimanual isometric force control in healthy adults. In total, 17 young adults (aged 25.1 ± 2.4 years) and 14 older adults (aged 72.6 ± 3.4 years) participated in the study. The subjects were instructed to press both hands simultaneously to match the 1 Hz sine curve force under two conditions (with or without calculation) with continuous visual feedback. Differences in bimanual motor synergy, bimanual coordination, force accuracy, force variability, and calculation speed were compared. This study found that the specific motor control strategy of older adults involved a decreased bimanual force control ability with both increased VUCM and VORT, and was not influenced by dual tasking. These findings might have implications for establishing interventions for aging-induced hand force control deficits.

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Effects of aging on motor control strategies during bimanual isometric force control

Abstract

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Keywords

ASJC Scopus subject areas

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