The association between the body composition and lifestyle affecting pulmonary function in Japanese workers

Abstract

[Purpose] The purpose of this study was to identify factors related to physical characteristics and lifestyle that affect pulmonary function. [Subjects and Methods] Ninety seven healthy male workers were recruited for this study, and basic information and details about lifestyle were collected. Body composition analyzer and visceral fat measuring device were conducted as measurements. Pulmonary function was measured using spirometer. A multiple stepwise linear regression analysis was performed with pulmonary function as the dependent variable. Variables with a significant association with pulmonary function on univariate analysis were imputed as independent variables. [Results] Height, fat free mass, upper extremity muscle mass, lower extremity muscle mass, and trunk muscle mass had significant positive correlations with FEV1 and FVC. Age, percentage of body fat, and visceral fat area were negatively correlated with FEV1 and FVC. Regarding the association between pulmonary function and lifestyle, a significant difference was found between the smoking index and the presence or absence of metabolic syndrome risk factors and both FEV1 and FVC. The multiple stepwise linear regression analysis with FEV1 as the dependent variable, adjusted for age and height, revealed that visceral fat area and fat free mass were significantly associated with FEV1. A similar analysis, FVC as the dependent variable identified visceral fat area. [Conclusion] FEV1 was independently associated with visceral fat area and fat free mass. FVC was independently associated with visceral fat area. These results may be valuable in preventing the decrease in respiratory function and, hence, in further preventing the onset of COPD.

Relationships between body composition and pulmonary function in a community-dwelling population in Japan

“…The effects of obesity on pulmonary function are more associated with FVC than with FEV 1 [37]. Furthermore, VFA is positively correlated with intra-abdominal visceral fat volume [38], with numerous studies examining the relationship between FVC and FEV 1 (VFA, FVC, and FEV 1 showed negative correlations) [25,[39][40][41]. Values are the median and the 25 th and 75 th percentiles.…”

Inspiratory muscle strength, diaphragmatic mobility, and body composition in chronic obstructive pulmonary disease

“…However, according to Beijers et al (), abdominal obesity frequently concurs with low muscle mass in patients with COPD. The visceral fat and body fat percentage are also associated with decreased pulmonary function, because increased abdominal pressure may also limit diaphragm movement (Inomoto et al, ).…”

Implications of low muscle mass across the continuum of care: a narrative review

“…Higher muscle mass and not having sarcopenia was positively associated with serum albumin levels (149) better physical function (150–159), higher quality of life (157, 159), and longer survival (154, 160–162). Higher muscle mass was also negatively associated with cardiovascular disease risk factors (163), idiopathic pulmonary fibrosis (154), low bone mineral density (164), bone fractures (165), hospitalization (161), poor pulmonary function (166); sarcopenia was associated with poorer disease specific outcomes such as ankylosing spondylitis (164) and poor renal function (167). Better muscle attenuation was associated with improved balance (150), quality of life (159), and survival (168).…”