Day-to-day variations in basal metabolic rates and energy intakes of human subjects.

摘要: Variations in BMR, body weight and energy intake were measured for 14 consecutive days 6 young adults on ad libitum intakes, whose physical activity was uncontrolled. Energy intakes showed significant differences between (P less than 0.025, CV = 6.7 per cent), weeks 0.005, 8.9 cent) subjects 7.9 cent). cent higher 0.01) at weekends. Intra-individual variance contributed up to 86 of the total intake. Replicate BMR measurements non-significant from day (CV 1.5 a training effect week 0.05, 0.001, 12.4 only BMR. There no changes 0.7 or fat-free mass during study. Auto-correlations different lag times studied. Cross-correlations above parameters also each subject. It is concluded that despite wide fluctuations within an individual, variations are small with true cent. Hence these unlikely be important while assessing requirements basis FAO/WHO/UNU (1985) factorial method.