Primary study endpoint
At the 1-week follow-up after surgery, the 6MWT of participants was significantly improved in the EDP plus ACBT (difference = 47.25 m; 95% CI, 31.56–62.93; 
(A) 6-minute walk test, (B) the predicted percentage of forced expiratory volume in the first secondData points indicate means and error bars represent 95% confidence intervals.Note ACBT = active cycle of breathing technique; EDP = external diaphragm pacemaker; FEV1 = forced expiratory volume in one second; % of predicted = the predicted percentage.