In the viewpoints of a better exercise prescription, we tried to investigate the effects of various diet intake on resting conditions and physical responses to prolonged exercise. In this report, 5 healthy adult men were employed as subjects, and some changes in biochemical recordings of blood were obtained. We observed some noticeable differences in plasma enzymes activities and substrates levels after 10km running among cases of mixed diet, high carbohydrate diet, and protein-fat diet.
　It might be possible that some disorders occurred upon metabolic pathway from the viewpoints of exercise stress and energy supply. But, we could not conclude only nutrition intake brought those disorders or not, because individual variations existed. However, acute diet changes itself can become a stressor for the organism and exercise stimuli might cause abnormal metabolism under unsuitable nutritional conditions. We thought it is necessary to study these problems, including trainability of subjects, further more.

DESCENTE SPORTS SCIENCE Vol.3/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE