primary studies published, non RCT Physical working capacity before and after chest physiotherapy in cystic fibrosis. Year: 1977 Date: 1979 Author: Baran D Source Cystic Fibrosis YR: 1977 DE: CCT Participants 14 patients with cystic fibrosis Interventions mechanical and manual percussion physiotherapy Outcome measures sputum volumes, and FEV1 and FVC Main results Results with mechanical percussor were as good as with the manual percussor and, therefore, it would be reasonable for the older patient to use the former on his own. Related topics Active cycle of breathing technique in cystic fibrosis Oscillating devices in cystic fibrosis Positive expiratory pressure in cystic fibrosis