Please use this identifier to cite or link to this item: http://ir.swu.ac.th/jspui/handle/123456789/12328
Title: Age-related changes in reach-to-grasp movements with partial visual occlusion
Authors: Runnarong N.
Tretriluxana J.
Waiyasil W.
Sittisupapong P.
Tretriluxana S.
Keywords: adult
age
aged
aging
Article
daily life activity
female
high risk population
human
human experiment
kinematics
male
middle aged
motor performance
motor reaction time
movement time
normal human
reach to grasp movement
risk factor
task performance
vision test
visual acuity
visual feedback
visuomotor coordination
young adult
age
biomechanics
hand
hand strength
movement (physiology)
pathology
physiology
psychomotor performance
sensory feedback
vision
Adult
Age Factors
Aged
Aging
Biomechanical Phenomena
Feedback, Sensory
Female
Hand
Hand Strength
Humans
Male
Middle Aged
Movement
Psychomotor Performance
Vision, Ocular
Issue Date: 2019
Abstract: This study investigated the influence of age and visual occlusion on fast reach-to-grasp movements. The effect of visual occlusion on reach-to-grasp movement was examined using a task that heavily relies on feed-forward control. Three groups of healthy adults aged 22, 49 and 65 on average performed fast reach-to-grasp movements with full visual and partial visual occlusion conditions of the hand during the initial part of movement. Regarding the effect of age, the all parameters of reach-to-grasp movement were deteriorated with age, except relative time to maximum velocity and spatial coordination. Regarding the effect of visual condition, participants reached with prolonged movement time, lower peak velocity, and later occurrences of peak velocity and peak aperture, as well as decrease in spatial coordination. Regarding the effect of age on visual condition, visual occlusion resulted in a longer movement time and delayed time to maximum velocity in middle-aged and older groups compared to full vision, but the difference was not observed in the younger groups. Conclusion: Reach-to-grasp performance deteriorated with age and the performance was affected when vision of the hand at initial movement was occluded. Overall, movement performance in middle-aged and older adults was affected by visual occlusion, whereas it was unaffected in younger adults. The results indicate that visual feedback of the hand at initial movement is important to control reach-to-grasp movement of middle-aged and older adults during real tasks. © 2019 Runnarong et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071420778&doi=10.1371%2fjournal.pone.0221320&partnerID=40&md5=7c8746797c90e79dcb7168a2a679d860
http://ir.swu.ac.th/jspui/handle/123456789/12328
ISSN: 19326203
Appears in Collections:SCOPUS 1983-2021

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