Body composition analysis is useful for objective evaluation of malnutrition in patients with chronic obstructive pulmonary disease (COPD). The purpose of this study was to evaluate the influence of body composition on exercise performance by patients with COPD using a new method of bioelectrical impedance analysis. Twenty patients with COPD performed incremental exercise ramp tests to the symptom‐limited maximum and constant work rate tests for 10 min. Their body compositions were measured by bioelectrical impedance …

Little is known about limb muscle abnormalities in mild COPD. Inactivity and systemic inflammation could play a role in the development of limb muscle dysfunction in COPD. The objective of the present study was to characterize quadriceps function, enzymatic activities and morphometry, levels of plasma inflammatory markers and physical activity levels in daily life (PAdl) in patients with mild COPD (GOLD 1). Mid-thigh muscle cross-sectional area (MTCSA), quadriceps strength, endurance, fiber-type distribution, capillarity, pro …

[Purpose] The purpose was to determine the correlation between the skeletal muscle mass index and parameters of respiratory function and muscle strength in young healthy adults as predictors of sarcopenia in association with aging and respiratory diseases.[Participants and Methods] Participants were 41 males and 37 females with a mean age of 19.5±1.5 years. The following were measured: body composition (skeletal muscle mass index), respiratory function (vital capacity, inspiratory reserve volume, expiratory reserve volume, inspiratory …

Objective To investigate the characteristics of baseline body fluid content and overnight fluid shifts between non-obstructive sleep apnea (non-OSA) and obstructive sleep apnea (OSA) subjects. Methods A case-controlled study was performed between February 2013 and January 2014, with 36 (18 OSA and 18 non-OSA) outpatients enrolled in this study. Polysomnographic parameters and results of body fluid were compared between the two groups. Results There were no differences in age, weight, and body mass index (BMI) …

Patients with distinctive morphotype were more susceptible to nontuberculous mycobacterial lung disease (NTM-LD). However, little is known about the association between body morphotype and progression of NTM-LD. The aim of this study was to elucidate predictors of NTM-LD progression, focusing on body morphotype and composition. Data from patients with NTM-LD who participated in NTM cohort which started in 1 July 2011 were analyzed. Patients with more than 6 months of follow up were included for analysis. NTM-LD …

Obstructive sleep apnea syndrome (OSAS) is a life-threatening condition, with several risk factors and predictors. Some of them are easy to evaluate and had a great sensitivity to indicate the risk of OSAS occurrence. The aim of the study was to evaluate the correlation between specific body composition items obtained with and OSAS compared with body mass index (BMI). We performed a cross-sectional study including 76 patients, 51 with OSAS and 25 without OSAS used as control group. Anthropometric measurements …

Background Prediction of future exacerbations of chronic obstructive pulmonary disease (COPD) is a major concern for long-term management of this disease. Aim To determine which of three multidimensional assessment systems (the body mass index, obstruction, dyspnea, and exercise capacity [BODE] index; dyspnea, obstruction, smoking, exacerbations [DOSE] index; or age, dyspnea, obstruction [ADO] index) is superior for predicting exacerbations. Methods This was a 2-year prospective cohort study of COPD …

Background and objective Obesity is an established risk factor for poor health outcomes, but paradoxically in chronic obstructive pulmonary disease (COPD), it is associated with improved survival and lung function. A major evidence gap exisits to inform treatment recommendations for patients with COPD who are obese. We aimed to determine the effect of weight reduction involving a low‐energy diet utilizing a partial meal replacement plan, coupled with resistance exercise training in obese COPD patients. Methods In a proof of …

Background The present study was designed to compare inflammatory and metabolic responses according to severity of airflow among patients with COPD and to verify the relationship between pulmonary function, body composition, metabolic and inflammatory profile. Methods Fifty-one patients with mild to very severe COPD were recruited and divided according lung function in Mild-moderate (GOLD 1–2) n= 21; Severe (GOLD 3) n= 25 and Very severe (GOLD 4) n= 5. Patients were submitted to assessments of lung function …

Background Although muscle loss is thought to be a prognostic factor in chronic obstructive pulmonary disease (COPD), its determinants remain unclear. Aim To verify the hypothesis that fat-free mass (FFM) and fat mass (FM) are associated with the extent of emphysema in COPD patients.