文章基本信息

标题：Effect of Three Kinds of Severe Repeated Exercises on Blood Lactate Concentrations in Thoroughbred Horses on a Treadmill
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作者：Daisuke ETO ; Tetsuro HADA ; Kanichi KUSANO 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：2004
卷号：15
期号：3
页码：61-65
DOI：10.1294/jes.15.61
出版社：Japanese Society of Equine Science
摘要：The purpose of this study is to examine the effects of various rest periods during intermittent exercise with respect to blood lactate concentrations in Thoroughbred horses. Four Thoroughbred horses each underwent three types of intermittent exercise program and blood lactate concentrations during the exercise, which was carried out on a 7% inclined treadmill, were measured. The intensity of each bout was set at 116% HRmax for 50 sec. Each program comprised three bouts separated by rest periods set at either 2, 5 or 15 min. Blood lactate concentrations during the second and third bouts increased approximately 6 mmol/l in the 15-min intermittent exercise program, but almost no changes were observed during all bouts in the 5-min intermittent exercise program. By contrast, blood lactate concentrations decreased during bouts in the 2-min intermittent exercise program. It is considered that this suggests more lactate in muscles was oxidized to supply energy in the 2-min intermittent exercise program than in the other two exercise programs. It is therefore suggested that a 2-min intermittent exercise program more effectively stimulates the lactate oxidation system in Thoroughbred horses than do programs with longer rest periods.
关键词：intermittent exercise;lactate;rest period;Thoroughbred