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Abstract College students (N = 72) took a four-minute test of addition on two separate days, once preceded by an exhausting treadmill run and once without prior exertion. Scores were recorded for speed and accuracy for each minute and for the total four minutes. It was found that the exertion had a significant negative effect on accuracy for the total four minutes as well as for the second and fourth minute. No significant effect of exertion on speed was obtained. When control and experimental conditions were considered together a significant trend in favor of high fitness subjects was found on speed of addition. Significant differences in favor of medium and high fitness subjects were found on accuracy of addition.
Gutin et al. (Sun,) studied this question.