Effect of low- and high-carbohydrate diets on the plasma glutamine and circulating leukocyte responses to exercise

被引:49
作者
Gleeson, M [1 ]
Blannin, AK [1 ]
Walsh, NP [1 ]
Bishop, NC [1 ]
Clark, AM [1 ]
机构
[1] Univ Birmingham, Sch Sport & Exercise Sci, Birmingham B15 2TT, W Midlands, England
来源
INTERNATIONAL JOURNAL OF SPORT NUTRITION | 1998年 / 8卷 / 01期
关键词
exercise metabolism; neutrophils; lymphocytes; cortisol; postexercise recovery;
D O I
10.1123/ijsn.8.1.49
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
We examined the effects of a low-carbohydrate (CHO) diet on the plasma glutamine and circulating leukocyte responses to prolonged strenuous exercise. Twelve untrained male subjects cycled for 60 min at 70% of maximal oxygen uptake on two separate occasions, 3 days apart. All subjects performed the first exercise task after a normal diet; they completed the second exercise task after 3 days on either a high-CHO diet (75 +/- 8% CHO, n = 6) or a low-CHO diet (7 +/- 4% CHO, n = 6). The low-CHO diet was associated with a larger rise in plasma cortisol during exercise, a greater fall in the plasma glutamine concentration during recovery, and a larger neutrophilia during the postexercise period. Exercise on the high-CHO diet did not affect levels of plasma glutamine and circulating leukocytes. We conclude that CHO availability can influence the plasma glutamine and circulating leukocyte responses during recovery from intense prolonged exercise.
引用
收藏
页码:49 / 59
页数:11
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