Abstract
Principles of force and variability of force suggest that generating maximal forces will result in greater spatial accuracy. 18 right-handed males performed an over-arm throwing task at 50, 75, and 100% of maximum velocity while attempting to hit an archery target. A one-way analysis of variance of velocity with repeated measures on the target showed that the 75% condition was significantly more accurate than either of the other two. The principles may not be generalizable to tasks involving muscular coordination; it seems Fitts' Law may be more applicable.
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