文章基本信息

标题：フルマラソンレースにおけるCardiovascular drift とパフォーマンスとの関係
本地全文：下载
作者：嶋津航 ; 髙山史徳 ; 丹治史弥等
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：2019
卷号：64
期号：1
页码：237-247
DOI：10.5432/jjpehss.18089
语种：Japanese
出版社：Japan Society of Physical Education, Health and Sport Sciences
摘要：Heart rate (HR) monitoring, which reflects exercise intensity and environmental factors, is often used for pacing strategies in the marathon race. However, it is difficult to obtain appropriate feedback for only the HR value since cardiovascular drift (CV drift) occurs during prolonged exercise. Recently, cardiac cost (CC: HR divided by running velocity) has been shown to be a potential index for evaluation of CV drift during the marathon race. The aim of this study was to clarify the relationship between CV drift and performance in the marathon race. Fourteen male university student runners participated. They carried out incremental tests on a treadmill and took part in an actual marathon race. CV drift was evaluated from differences between CC in the 0-5-km section and over every 5-km section (ΔCC). The marathon performance was examined from two viewpoints: absolute performance (average running velocity during the race: Vmar), and relative performance (Vmar against velocity corresponding to ventilatory threshold: vVT achv.). Significant correlations were found between ΔCC and vVT achv. in the 25-30 km, 30-35 km and 35-40 km sections (r = −0.672, −0.671 and −0.661, respectively), suggesting that excessive CV drift had a negative impact on relative performance. We can therefore conclude that suppression of CV drift after 25 km is an important factor for improvement of relative performance.
关键词：心拍数;cardiac cost;有酸素性能力;換気性代謝閾値
其他关键词：heart rate##cardiac cost##aerobic capacity##ventilatory threshold