10〜12歳児の走運動による乳酸閾値(LT) : 運動群と非運動群の比較 : 発育期の体力に関する基礎的研究

概要

論文の詳細を見る
The influence of daily physical exercise on oxygen utilizing capacity of working muscle investigated by leans of measuring lactate threshold (LT) during progressive treadmill running from the comparison between soccer group (S group : N=12, 11.9±0.1, years of age) and control group (C group : N=14, 11.8±0.1 years of age). LT_1 was determined as the point where blood lactate concentration (La) increased from rest level, and LT_2 was determined by the gradient, La/V^^・O_2 body weight^<-1> ( 2 mM/10ml. kg^<-1>. min^<-1>). LT_1 and LT_2 in S group were significantly higher than those in C group expressed with absolute and relative values of V^^・O_2 ( 1. min^<-1>, ml. kg^<-1>. min^<-1>: % V^^・O_2max). No significant differences in La, ventilation responses, and heart rate at the point of LT_1 and LT_2 were observed between S and C group. La showed slight decrease and was kept at lower level in S group with increase of V^^・O_2, compared with C group. On the contrary, La in C group began to increase at lower level of V^^・O_2. From our previous longitudinal study of LT in non-athletic children, we observed that LT shifted to lower level with growth. It was suggested that La curve of S group, such shift had not occurred. Differences of these patterns in V^^・O_2 and La between athletic children and non-athletic children were similar to those observed in adults athletes and non-athletes. In conclusion it was supposed that sufficient daily physical training in 10-12 year of age might increase oxygen utilizing capacity of leg working muscle during running exercise.
日本体力医学会の論文
1985-12-01

10〜12歳児の走運動による乳酸閾値(LT) : 運動群と非運動群の比較 : 発育期の体力に関する基礎的研究

スポンサーリンク

概要

著者

関連論文

スポンサーリンク