James R Walsh1,2,3, Daniel C Chambers2,4, Peter M A Hopkins2,4. 1. Physiotherapy Department, The Prince Charles Hospital, Brisbane, Queensland, Australia. 2. Queensland Lung Transplant Service, The Prince Charles Hospital, Brisbane, Queensland, Australia. 3. School of Rehabilitation Sciences, Griffith University, Gold Coast, Queensland, Australia. 4. School of Medicine, The University of Queensland, Brisbane, Queensland, Australia.