[1] Princess Alexandra Hosp, Intens Care Unit, Brisbane, Qld, Australia
[2] Princess Alexandra Hosp, Physiotherapy Dept, Brisbane, Qld, Australia
[3] Queensland Univ Technol, Sch Publ Hlth & Social Work, Brisbane, Qld, Australia
[4] Queensland Univ Technol, Inst Hlth & Biomed Innovat, Brisbane, Qld, Australia
[5] Griffith Univ, NHMRC Ctr Res Excellence Nursing Intervent Hospit, Menzies Hlth Inst Queensland, Nathan, Qld, Australia
[6] City Univ London, Sch Hlth Sci, London, England
[7] Univ Queensland, Sch Med, Brisbane, Qld, Australia
[8] Metro South Hlth, Ctr Functioning & Hlth Res, Brisbane, Qld, Australia