The effects of running training on aerobic power of a former elite marathon runner were determined by exhausting treadmill work method from 1983, at age 46 yr. to 1985, 48 yr. Aerobic power of a former elite marathon runner was fairly greater than that of the average men at corresponding ages. Maximal oxygen uptake. O₂-removal, all-out time, O₂-pulse increased by running training, but maximal ventilation, maximal respiratory rates, tidal volume, maximal heart rates did not increase. This results showed that training effects in a former marathon runner were different from in the average men. We found no differences between the speed of appearance and disappearance of training effects in a former elite marathon runner and in the average men. Aerobic threshold increased 9.5%, expressed in percent of VO₂max (88.0%→96.3% VO₂max). We concluded that the increment in maximal oxygen uptake derived from the improvement of O₂-removal, which suggested the improvement of oxidation in muscle.

DESCENTE SPORTS SCIENCE Vol.7/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE