長・中・短距離走者の無気的作業閾値,酸素債および酸素摂取量の反応時間

概要

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Subjects were long distance runners(n=6), middle distance runners(n=6), and sprinters (n=4). They exercised in incremental exercise and steady state exercise. The anaerobic thershold (AT), O_2 deficit at AT (AT-O_2df), and time constant of V^^・o_2 (τ)which were obtained from these exercise tests were compared among three groups of runners, and the interrelationship of three parameters was elucidated. The results were as follows. 1) AT-V^^・o_2 of long distance runners was the highest followed by the values of middle distance runners and sprinters, successively. The AT-V^^・o_2 per weight and per V^^・o_2max also decreased in the same order. 2) AT-O_2df per weight of long distance runners was as high as that of middle distance runners, and was significantly higher than that of sprinters. 3) τ of long distance runners was shorter than that of middle distance runners, but was not significantly shorter than that of sprinters. τ of long distance runners was shorter than the reported one of untrained people. 4) ΔAT-V^^・o_2 (difference between AT-V^^・o_2 and V^^・o_2 at rest) related to neither AT-O_2df nor τ. However, the ratio of AT-O_2df/τ significantly related to the ΔAT-V^^・o_2 (r=0.795, n=16, p<0.001). From these results, the highest values of AT-V^^・o_2 obtained in long distance runners would be due to both high AT-O_2df and short τ.
日本体力医学会の論文
1985-06-01