THE EFFECTS OF CAFFEINE AND EVENING MEALS ON SLEEP AND PERFORMANCE, MOOD AND CARDIOVASCULAR FUNCTIONING THE FOLLOWING DAY

被引:25
作者
SMITH, AP [1 ]
MABEN, A [1 ]
BROCKMAN, P [1 ]
机构
[1] UNIV WALES COLL CARDIFF,SCH PSYCHOL,HLTH PSYCHOL RES UNIV,CARDIFF CF1 3YG,WALES
关键词
CAFFEINE; MEALS; PERFORMANCE; MOOD; CARDIOVASCULAR FUNCTION;
D O I
10.1177/026988119300700209
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
An experiment was carried out to examine the effects of caffeine and evening meals on sleep and performance, mood and cardiovascular functioning in the early morning of the next day. Forty-eight subjects were assigned to one of the four conditions formed by combining caffeine and meal conditions. Subjects in the caffeine condition were given 3 mg/kg caffeine in de-caffeinated coffee. The caffeine manipulation was double blind. Subjects in the meal condition were given a 3-course meal (approximately 1300 calories). Sleep was assessed by subjective ratings and these showed that both caffeine and consumption of the meal influenced sleep, but that there were no interactions between caffeine and meal conditions. Although caffeine disrupted sleep there was no evidence of performance or mood being impaired the next day. However, blood pressure was still higher the next day in subjects given caffeine the previous evening.
引用
收藏
页码:203 / 206
页数:4
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