hy..i thnk u have to combine pulm rehab as well as brochial hygiene therapy fr ths patient..chk out his exercise tolerance, both on O2 and off O2. u cn make him do some exercises with n without O2,,,thn chk fr his exercise endurance. once u get that, u cn design a exercise prog fr him...it really helps in maintaining his physical ability...ths shd be done along wth gud old Postural drainage techniques with ACBT..dis combination is really effective..
if he's really frail n wasted...thn try NMES to get his muscles bak..