Samenvatting
Tracking tasks were performed by 25 subjects with the right arm before and after cranking a bicycle ergometer with the left arm for periods of 60, 90, and 120 sec. The results indicate a significant decrement in tracking performance the first ten seconds after each of the cranking periods. By 30 seconds after cranking, tracking performance returned to precranking level for each of the conditions. The decrement was not attributable to heart rate or breathing rate increases which remained for periods of up to five minutes. The crossover fatigue effect warrants further study. For the covering abstract of the conference see IRRD 268805.