Journal of Obesity & Metabolic Syndrome

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Korean J Obes 2008; 17(2): 73-81

Published online June 1, 2008

Copyright © Korean Society for the Study of Obesity.

The Relationship between Resting Metabolic Rate and Cardiovascular Risk Factors in the Obesity women

A young Nam,Soon Young Lee,Kyoung Jong Lee,Sat Byul Park*

Department of Family practice and community health Ajou University school of medicine

Abstract

Background: Resting metabolic rate (RMR) composes
the largest portion of daily energy expenditure. After
adjusting for height and weight, less progression towards
obesity was noted among the higher RMR group than
those of lower groups. Based on the theory that obesity
increases the risk of cardiovascular disease, this study was
conducted to investigate whether obesity is associated
with lower RMR after adjusting for weight and height.
The relationship between RMR and cardiovascular risk.
factors was also investigated.
Methods: The study population consisted of 39 women
aged from 40 to 67 years old who had visited a health
promotion center in a university hospital since January,
2005 until May, 2007. Self-reported answers on daily
activity, smoking, drinking, medication and past medical
history were assessed. Height, weight, waist circumference
and blood pressure were measured. Baseline blood
samples were evaluated and RMR was measured by
indirect calorimetry.
Results: As body mass index (BMI) increased, hs-CRP
increased (P = 0.004) however, RMR per kilogram (P <
0.000) decreased as BMI increased. RMR had a
significant correlation with height (P = 0.041), weight (P
< 0.000), fat free mass (P = 0.001), BMI (P = 0.003) and
fat mass (P = 0.004). Both before and after adjusting for
age, height and weight, there were positive relationship
only with fat free mass (P = 0.001) and fat mass (P =
0.004).
Conclusion: Cardiovascular risk factor and RMR
showed no significant correlation before and after
adjusting for height, weight and age. Only fat free mass
and fat mass showed significant positive relationship with
RMR in both cases.

Keywords: obesity, RMR, cardiovascular risk factors