Is daily physical activity affected by dynamic hyperinflation in adults with cystic fibrosis?

BMC Pulmonary Medicine

Nicholas J. Simmonds¹  Chiara Pascucci²  Serena Quattrucci³  Daniela Savi⁴  Paolo Palange⁴  Marcello Di Paolo⁴ 

[1] Department of Cystic Fibrosis, Royal Brompton Hospital and Imperial College;Department of Experimental Medicine, Sapienza University of Rome;Department of Pediatrics, Cystic Fibrosis Center, Sapienza University of Rome;Department of Public Health and Infectious Diseases, Adult Cystic Fibrosis Center, Sapienza University of Rome;

关键词: Cystic fibrosis;    Daily physical activity;    Dynamic hyperinflation;    Exercise intolerance;   

DOI  :  10.1186/s12890-018-0623-7

来源: DOAJ

【 摘 要 】

Abstract Background The aim of this study was to investigate the relationship between dynamic hyperinflation and daily physical activity (DPA) in adults with cystic fibrosis (CF). Methods Thirty-four clinically stable CF were studied. All patients undertook incremental cardiopulmonary exercise testing (CPET). CPET-related measurements included: oxygen uptake (V’O2), carbon dioxide production (V’CO2), ventilatory profile, work rate (W), inspiratory capacity (IC), end-expiratory lung volume (EELV). PA was assessed using the accelerometer SenseWear Pro3 Armband. Results Exercise tolerance was reduced in most of patients and the mean V’O2,peak value was 75.2% of predicted (28.5 ± 4.8 ml/min/kg). Seventy % of patients responded to CPET with dynamic hyperinflation. Higher incidence of dynamic hyperinflation was found in CF males compared to CF females (p = 0.026). Patients who developed dynamic hyperinflation during CPET had higher vigorous PA (p = 0.01) and more total energy expenditure (p = 0.006) than patients who did not. EELVΔ was related to activities requiring vigorous intensity and total energy expenditure (R = 0.46, p = 0.001; R = 0.57, p <  0.001). Conclusions In adults with CF and mild to moderate lung impairment, DPA might not be limited by dynamic hyperinflation.

【 授权许可】

Unknown