Activité physique quotidienne de patients adultes atteints de mucoviscidose

Assessment of daily physical activity (DPA) is a major element in the development of respiratory rehabilitation. The aim of this study was to evaluate the DPA and the daily energy expenditure (DEE) in adult patients with cystic fibrosis. Thirty adult patients (16 women, 14 men, mean age 27.1 ± 8.4 years) with cystic fibrosis (FVC: 69.2 ± 19%, FEV1: 55.1 ± 24%, BMI: 20.5 ± 3.6 kg/m2), in stable condition were included in the study. The questionnaire allowed DPA to estimate DEE from the intensity and type of activity. This tool divides the DEE into four intensity levels: less than 1 Metabolic Equivalent Task (MET), greater than 1 and less than 3 METs, 3-5 METs, and greater than 5 METs. A shuttle test for estimating VO2 peak was performed in all patients. The DEE reached 9478.4 ± 3224.3 kJ 24 h−1 and was significantly and highly correlated with calculated peak VO2 (l/min) (r = 0.876, P = <0.001); 22% DEE was less than 3 METs, 10% between 3 and 5 METs et 2,5% greater than 5 METs; 65% DEE was less than 1 MET. There was a strong correlation between DEE and BMI (r = 0.860, P = <0.001), a low correlation with FVC (r = 0.423, P = 0.02). This questionnaire is relevant for estimating DPA and DEE in patients with cystic fibrosis and is an interesting test to be used to evaluate changes in patients after pulmonary rehabilitation.