Abnormal regional body fat distribution also exists in non-obese subjects with high blood pressure.

A cross-sectional analysis was performed to explore the relationship between regional body fat distribution and blood pressure in non-obese subjects with different status of blood pressure. Dual-energy X-ray absorptiometry was performed to measure fat mass. Obesity was defined as present body fat ≥25% in males and ≥35% in females. The ratio of leg fat mass to total fat mass (L/T) decreased gradually while the ratio of trunk fat mass to total fat mass (Tr/T) increased gradually with the increasing blood pressure for both genders in non-obese subjects (P < .01), which was consistent with the change in obese ones; and the blood pressure status in the low Tr/T + high L/T group was better than that in the high Tr/T + low L/T group, obviously. After adjustment for confounding factors, blood pressure was still positively related with Tr/T but negatively associated with L/T in non-obese groups. A multiple linear regression analysis showed that L/T was the major negative factors of blood pressure in the non-obese population. Abnormal fat distribution also exists in non-obese subjects with high blood pressure; compared to trunk fat, leg fat may be a more important factor against blood pressure.