Abstract
The purpose of this study was to compare the effects of a single practice session on performance strategies used by young and older adults to decrease movement time (MT) while maintaining accuracy of an aiming task. Five young and 5 older adult males practiced until each accumulated 500 target hits in each of two complexity conditions as defined by Fitts's law. Participants decreased MT with practice; however, older adults had longer MTs than the young, particularly in the high-complexity condition. With practice in the low-complexity condition, participants decreased absolute acceleration and deceleration times but maintained the relative amount of MT devoted to temporal phases. In contrast, with practice in the high-complexity condition, participants decreased absolute deceleration and dwell time and changed the temporal structure. Results suggest that older adults can decrease MT with practice and that the performance strategies adopted to speed performance are more a function of task complexity than age.
Original language | English (US) |
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Pages (from-to) | 45-61 |
Number of pages | 17 |
Journal | Journal of Aging and Physical Activity |
Volume | 6 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1998 |
Externally published | Yes |
Keywords
- Aiming
- Motor control
- Practice
ASJC Scopus subject areas
- Physical Therapy, Sports Therapy and Rehabilitation
- Rehabilitation
- Gerontology
- Geriatrics and Gerontology