Elderly subjects are impaired in spatial coordination in fine motor control

Contreras-Vidal, José L.; Teulings, Hans-Leo; Stelmach, George E.

doi:10.1016/s0001-6918(98)00023-7

Cited by 112 publications

(93 citation statements)

References 15 publications

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“…This decrease has a physiologic basis in aging and is amplified by disuse and dysfunction. In general, aging adults demonstrate decreases in movement speed (Light, 1990;Mankovsky, Mints, & Lisenyuk, 1982;Poston et al, 2008;Yan et al, 1998), accuracy of movement (Chaput & Proteau, 1996), reaction time (Light, 1990;Sparrow et al, 2006;Yan et al, 1998), strength (Roos et al, 1997;Vandervoort, 2002), hand dexterity (Contreras-Vidal, Teulings, & Stelmach, 1998;Seidler, Alberts, & Stelmach, 2002), and postural control (Jonsson, Henriksson, & Hirschfeld, 2007;Koceja, Allway, & Earles, 1999;Mourey et al, 1998;. En masse, these changes have the potential to contribute to a spiral of disuse and loss of function that often characterizes the process of aging.…”

Section: Changes To the Human Sensorimotor System Across The Lifespanmentioning

confidence: 99%

Vision for Motor Performance in Virtual Environments Across the Lifespan

Grabowski¹,

Mason²

2012

Virtual Reality and Environments

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Section: Changes To the Human Sensorimotor System Across The Lifespanmentioning

confidence: 99%

Vision for Motor Performance in Virtual Environments Across the Lifespan

Grabowski¹,

Mason²

2012

Virtual Reality and Environments

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“…To take into account baseline differences due to increased spatio-temporal movement variability with advancing age Darling et al 1989;Contreras-Vidal et al 1998;, standardized scores were computed from the IDE and RMSE variables. The standardized score (z-score) for an item indicates how far and in what direction that item deviates from its distribution's mean, expressed in units of its distribution's standard deviation.…”

Section: Data Acquisition and Analysismentioning

confidence: 99%

Visuomotor Adaptation in Normal Aging

Buch¹,

Young²,

2003

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Visuomotor adaptation to a gradual or sudden screen cursor rotation was investigated in healthy young and elderly subjects. Both age groups were equally divided into two subgroups; one subgroup was exposed to 11.25° step increments of visual feedback rotation, every 45 trials (up to a total of 90°), whereas a second subgroup was subjected to 90° rotation from the onset of exposure. Participants performed discrete, horizontal hand movements to virtual targets in four randomized directions. Targets appeared on a computer screen in front of them, and a board prevented vision of the hand at all times. Differential effects of aging on visuomotor adaptation were found, depending on the time course of the visual distortion. In both age groups, early exposure to the sudden visual feedback distortion resulted in typical spiral-like trajectories, which became straighter by late exposure. However, the final adaptation level was reduced in the aged group, although the aftereffects were similar. When subjects were exposed to the gradual distortion, no statistically significant differences in measures of adaptation with advancing age were found. In this case, both age groups appeared to adapt equally. However, after removal of the distortion, elderly subjects showed reduced aftereffects as compared with the young group. These findings suggest differential effects of aging on adaptation to gradual versus sudden visual feedback distortions, and may help to explain the conflicting results obtained in previous visuomotor adaptation studies

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“…The second study (19) examined elderly persons' handwriting by asking participants to perform back and forth strokes in different directions using a digitizing tablet and a specialized pen. Results showed that the movement production of the elderly was impaired in the spatial coordination of finger and wrist movements rather than in acceleration (or force) control.…”

Section: Introductionmentioning

confidence: 99%