Lean body mass positively associate with blood pressure in Chinese adults: the roles of ages and body fat distribution

• Published in: BMC public health 2023-12, Vol.23 (1), p.2453-2453, Article 2453
• Main Authors: Yuan, Wen, Zhang, Yi, Chen, Li, Liu, Jieyu, Chen, Manman, Guo, Tongjun, Wang, Xinxin, Ma, Tao, Ma, Qi, Jiang, Jianuo, Cui, Mengjie, Dong, Yanhui, Song, Yi, Ma, Jun
• Format: Article
• Language: English
• Subjects: Absorptiometry, Photon; Adult; Adults; Age; Age groups; Age Trend; Alcohol use; Analysis; Blood Pressure; Body composition; Body Composition - physiology; Body fat; Body Fat Distribution; Body mass; Body Mass Index; Cross-Sectional Studies; Demographic aspects; DXA; Fat distribution; Female; Females; Generalized linear models; Health aspects; Humans; Hypertension; Lean body Mass; Male; Males; Measurement; Physical examinations; Population; Questionnaires; Risk factors; Sex differences; Variables; Variance analysis; Young Adult
• ISSN: 1471-2458; 1471-2458
• DOI: 10.1186/s12889-023-17312-0

The relationship between lean body mass (LBM) and blood pressure (BP) is controversial and limited. This study investigated the associations between LBM indexes and BP in adults of different ages and with varying body fat distribution. The data for the present analysis was obtained from a cross-sectional survey of 1,465 adults (50.7% males) aged 18-70 years conducted in Beijing, China. Regional LBM and fat distribution, including fat mass (FM) and android to gynoid fat ratio (AOI), were assessed using a dual-energy X-ray bone densitometer. Generalized Liner Model (GLM) was employed. Confounders, including age, sex, height, weight, smoking, and alcohol use, were evaluated through questionnaires and physical examinations. Males had higher rates of hypertension (11.19% vs. 4.92%) and prehypertension (21.57% vs. 14.59%) than females. The mean systolic blood pressure (SBP) and diastolic blood pressure (DBP) were 122.04 mmHg and 76.68 mmHg. There were no significant associations between LBM and DBP (p > 0.05). However, arms LBM (β = 1.86, 95% CI: 0.77, 2.94) and trunk LBM (β = 0.37, 95% CI: 0.01, 0.73) were significantly associated with SBP. The association of LBM on DBP was stronger with increasing ages, and stronger in females than in males (p