title: Effect of three levels of work intensity on performance of a fine motor skill.
abstract: The purpose of this study was to investigate the effect of three levels of work intensity on the performance of a fine motor skill during steady-state exercies. Subjects were administered a progressive bicycle ergometer test to exhaustion in order to determine maximum heart rate (HRmax). Following practice sessions on the pursuit rotor, subjects performed 3 different rides on a bicycle ergometer at 60, 75, and 90% of HRmax. The order to test administration was varied randomly in an attempt to control for sequential effects. Analysis of variance with repeated measures was used to determine differences in pursuit rotor performance by days and by levels of work intensity. No confounding of learning was noted. A significant F ratio (p less than .001) between work intensities showed that fine motor performance during steady-state exercise is affected by levels of work intensity.
mesh_terms: D000293:Adolescent; D000328:Adult; D000332:Aerobiosis; D006339:Heart Rate; D006801:Humans; D008297:Male; D009048:Motor Skills; D005082:Physical Exertion; D013997:Time Factors