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The effects of sensorimotor adaptati...

The University of Texas Medical Branch Graduate School of Biomedical Sciences.

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The effects of sensorimotor adaptation training on functional mobility in older adults.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The effects of sensorimotor adaptation training on functional mobility in older adults./
Author:	Bucello-Stout, Regina R.
Description:	208 p.
Notes:	Adviser: Ronita L. Cromwell.
Contained By:	Dissertation Abstracts International68-05B.
Subject:	Gerontology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3264708
ISBN:	9780549034162

The effects of sensorimotor adaptation training on functional mobility in older adults.
Bucello-Stout, Regina R.

The effects of sensorimotor adaptation training on functional mobility in older adults. - 208 p.

Adviser: Ronita L. Cromwell.

Thesis (Ph.D.)--The University of Texas Medical Branch Graduate School of Biomedical Sciences, 2007.

Research indicates that a main contributor of injury in older adults is from falling. Older adults experience age-related changes in their sensory systems and balance. The decline in vision may limit visual information needed to detect important environmental features while walking. The objective of this study was to determine if prolonged exposure to the realignment of perceptual-motor systems increases adaptability of balance, and if the trained adaptability can be retained in older adults. A total of 16 older adults between ages 65-85 were randomized to a control group (walking on a treadmill while viewing a static visual scene) and an experimental group (walking on a treadmill while viewing a rotating visual scene). Prior to the visual exposure, subjects completed six trials of walking through a soft foamed obstacle course. Subjects also completed nine trials of walking over a soft foamed pathway that consisted of a perturbation platform. The first three trials the platform did not move. The last six trials consisted of 3 random platform movements. Subjects came in twice a week for 4 weeks to complete training of walking on a treadmill and viewing the visual scene for 20 minutes each session. Subjects tested again on both tests after training, as well as four weeks later. Average time and penalty scores for the 6 trials were computed for both groups at all three testing times. The older adults who trained, significantly improved their posttest and retention time through the obstacle course compared to those who did not train F(2,13) = 13.64, p<.05. In addition, they also significantly reduced their posttest and retention penalty scores compared to those who did not F(2,13) = 69.82, p<.05. In response to the perturbation, the older adults demonstrated faster footfall averages across test periods F(2,287)=2.79, p=.11. They also changed to a more stabilizing movement strategy at slower velocities in the yaw plane of motion. The adaptations were retained up to four weeks. In conclusion, by changing visual flow information, the older adults recalibrated their perceptual-motor systems. The prolonged exposure to the realignment increased adaptability by improving functional mobility and unexpected perturbation performance.

ISBN: 9780549034162Subjects--Topical Terms:

533633
Gerontology.

The effects of sensorimotor adaptation training on functional mobility in older adults.
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020 $a 9780549034162
035 $a (UMI)AAI3264708
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100 1 $a Bucello-Stout, Regina R. $3 1043275
245 1 4 $a The effects of sensorimotor adaptation training on functional mobility in older adults.
300 $a 208 p.
500 $a Adviser: Ronita L. Cromwell.
500 $a Source: Dissertation Abstracts International, Volume: 68-05, Section: B, page: 3440.
502 $a Thesis (Ph.D.)--The University of Texas Medical Branch Graduate School of Biomedical Sciences, 2007.
520 $a Research indicates that a main contributor of injury in older adults is from falling. Older adults experience age-related changes in their sensory systems and balance. The decline in vision may limit visual information needed to detect important environmental features while walking. The objective of this study was to determine if prolonged exposure to the realignment of perceptual-motor systems increases adaptability of balance, and if the trained adaptability can be retained in older adults. A total of 16 older adults between ages 65-85 were randomized to a control group (walking on a treadmill while viewing a static visual scene) and an experimental group (walking on a treadmill while viewing a rotating visual scene). Prior to the visual exposure, subjects completed six trials of walking through a soft foamed obstacle course. Subjects also completed nine trials of walking over a soft foamed pathway that consisted of a perturbation platform. The first three trials the platform did not move. The last six trials consisted of 3 random platform movements. Subjects came in twice a week for 4 weeks to complete training of walking on a treadmill and viewing the visual scene for 20 minutes each session. Subjects tested again on both tests after training, as well as four weeks later. Average time and penalty scores for the 6 trials were computed for both groups at all three testing times. The older adults who trained, significantly improved their posttest and retention time through the obstacle course compared to those who did not train F(2,13) = 13.64, p<.05. In addition, they also significantly reduced their posttest and retention penalty scores compared to those who did not F(2,13) = 69.82, p<.05. In response to the perturbation, the older adults demonstrated faster footfall averages across test periods F(2,287)=2.79, p=.11. They also changed to a more stabilizing movement strategy at slower velocities in the yaw plane of motion. The adaptations were retained up to four weeks. In conclusion, by changing visual flow information, the older adults recalibrated their perceptual-motor systems. The prolonged exposure to the realignment increased adaptability by improving functional mobility and unexpected perturbation performance.
590 $a School code: 0764.
650 4 $a Gerontology. $3 533633
650 4 $a Health Sciences, Rehabilitation and Therapy. $3 1017926
650 4 $a Psychology, Physiological. $3 1017869
690 $a 0351
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690 $a 0989
710 2 $a The University of Texas Medical Branch Graduate School of Biomedical Sciences. $3 1021861
773 0 $t Dissertation Abstracts International $g 68-05B.
790 $a 0764
790 1 0 $a Cromwell, Ronita L., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3264708