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The 31 hyperactive and 31 normal boys 7 to 10 years old pedaled a bicycle ergometer for 0, 1, 5, and 10 min. then completed the WISC-R Digit Span, Coding B, and ITPA Visual Sequential Memory. Results did not support the inverted-U hypothesis in that prior exercise did not affect cognitive performance.
Diane H. Craft (1983) studied this question.