文章基本信息

标题：Effects of Low Intensity Exercise during the Breaking Period on Cardiopulmonary Function in Thoroughbred Yearlings
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作者：Atsushi HIRAGA ; Makoto KAI ; Katsuyoshi KUBO 等
期刊名称：Journal of Equine Science
印刷版ISSN：1340-3516
电子版ISSN：1347-7501
出版年度：1997
卷号：8
期号：1
页码：21-24
DOI：10.1294/jes.8.21
出版社：Japanese Society of Equine Science
摘要：We investigated the effects of low intensity exercise during the breaking period on cardiorespiratory function in twelve Thoroughbred yearlings. The horses were broken to handling and riding according to typical breaking program, and breaking was defined as a period of about 8 weeks covering bitting, saddling, longeing exercise and track exercise at trot and slow canter. Each horse performed an incremental exercise test on a treadmill before (pre-test) and after (post-test) the breaking period. Vo_2max was increased significantly after the breaking period (pre-test: 134.8 ± 8.9 ml/kg/min, post-test: 151.3 ± 7.9 ml/kg/min). There were no significant difference between the peak HR and La values before and after breaking. Breaking also caused no change in the relationship between speed and HR or La. The peak PCV value was significantly higher after breaking period. These results suggest that Thoroughbreds already have considerably high cardiorespiratory function at the early stage of their lives before breaking, and also suggest that cardiorespiratory function is enhanced through the breaking period, which is necessarily experienced by young racehorses.
关键词：Vo2max;Thoroughbred;breaking