Resting energy expenditure and its relationship with patterns of obesity and visceral fat area in Chinese adults.
OBJECTIVE
To investigate the relationship between resting energy expenditure (REE) and patterns of obesity/regional fat parameters in Chinese adults.


METHODS
Body mass index (BMI), fat mass (FM), fat-free mass (FFM) were assessed in 109 Chinese adults (52 men and 57 women), and their abdominal visceral adipose tissue area (VA) and subcutaneous fat area (SA) were measured using magnetic resonance imaging (MRI) measurements. REE was measured with indirect calorimetry and compared with normal and obese subjects. Multivariate analysis was used to study the factors related to REE.


RESULTS
The resting energy expenditure per kilogram of body weight (REE/kg) was closely related with the area of abdominal visceral fat measured with MRI. REE/kg was significantly lower in overweight/obesity subjects than in normal-weighted subjects, and significantly lower in subjects with abdominal obesity (VA > or = 100 cm2) than in subjects with non-abdominal obesity (VA < 100 cm2, BMI > or = 25 kg/m2). In the stepwise regression analysis of REE/kg on regional fat parameters, VA in men and women and SA in women were independent factors reversely related to REE/kg.


CONCLUSIONS
REE/kg is associated with the visceral fat area and more prominent in men. REE/kg can be used as an index in the pathophysiology of intra-abdominal obesity.
Jia
Wei-Ping
WP
Shanghai Diabetes Institute, No. 6 Hospital Affiliated to the Shanghai Jiaotong University, Shanghai 200233, China. wpjia@yahoo.com
Yang
Ming
M
Shao
Xin-Yu
XY
Bao
Yu-Qian
YQ
Lu
Jun-Xi
JX
Xiang
Kun-San
KS
D000273:Adipose Tissue / Q000378:metabolism; D001823:Body Composition; D015992:Body Mass Index; D001835:Body Weight; D004734:Energy Metabolism; D005223:Fats / Q000378:metabolism*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000378:metabolism*; D012146:Rest / Q000502:physiology*; D014781:Viscera / Q000378:metabolism*
D005223:Fats