文章基本信息

标题：オリンピックディスタンストライアスロンにおけるランニングパフォーマンスと有酸素性生理学的指標の関係： Classic modelの3要因に着目して
本地全文：下载
作者：青栁篤 ; 石倉恵介 ; 白井祐介等
期刊名称：体育学研究
印刷版ISSN：0484-6710
电子版ISSN：1881-7718
出版年度：2020
卷号：65
页码：815-830
DOI：10.5432/jjpehss.20042
出版社：Japan Society of Physical Education, Health and Sport Sciences
摘要：The 3 factors of the classic model (maximal oxygen uptake [VO 2max ], fractional utilization of VO 2max at the anaerobic threshold, and running economy [RE]) are well known to be the determinants of isolated distance running performance. However, no previous studies appear to have investigated the relationship between all 3 factors and running performance in the Olympic-distance triathlon (ODT). We therefore investigated this relationship by conducting 2 studies. In study I, the relationship between the 3 factors of the classic model and running performance in actual ODT races was investigated in 16 male triathletes. In study II, the relationship between the three factors and running performance in simulated ODT races with controlled exercise intensities, pedaling cadence, and carbohydrate intake during the swim and bike legs was investigated in 8 male triathletes. The 3 factors were quantified using a treadmill incremental test following the same protocol in each study. Simple correlation and multiple regression analyses were performed using the forced entry method. The independent variables were the 3 factors of the classic model, and the dependent variable was running performance in the ODT races. In study I, no significant correlation was found between the 2 measurements (p＞0.05). Furthermore, no significant multiple correlation coefficient was obtained (R＜0.54, p＞0.05), and＜10.7% of the running performance was attributable to the 3 factors. In study II, by contrast, a significant correlation was found between RE and running performance (r = 0.79, p = 0.02). In addition, a significant multiple correlation coefficient was obtained (R = 0.91, p = 0.05), and 69.9% of the running performance in the simulated ODT race was attributable to the three factors. In conclusion, we suggest that in the ODT the 3 factors of the classic model explain interindividual variation in running performance. However, in an actual ODT race, the relationship between the 3 factors and running performance may weaken owing to the residual effects of prior swimming and cycling.
关键词：multisport;マルチスポーツ;endurance performance;持久性パフォーマンス;maximal oxygen uptake;最大酸素摂取量;anaerobic threshold;無酸素性閾値;running economy;走の経済性