Abstract
A simgle, accurate methad for estimating daily energy expenditure has been devised by reexamination of the 24h- heart rate ratio (24h-HRR) method af Hashimoto et al. (1987). The estimated values of daily energy cost for three healthy women aged 27-54 years were obtained by the VO2/HR method, and were 1840±103, 1932±110 and 1734±115 kcal, respectively. The above values were obtained by the 24h-HRR method, using two standards, resting heart rate (RHR) and sleeping heart rate (SHR). The values of daily energy cost estimated by the 24h-HRR method using SHR tended to be higher than those obtained by the VO2/HR method. Upon further comparison between the 24h-HRR method and VO2/HR methfod, the values derived from SHR indicated a higher correlation coefficient (r=0.731) than those obtained from RHR (r=0.494). This suggests that SHR is a very useful standard for the 24h-HRR method.
