“…Most individual RCTs analysed fewer than 60% of the sample originally recruited in the study, excluding participants due to comorbidity or inability to undergo cardiopulmonary exercise testing. Participants were adults with colorectal (Carli et al, ; Cheville et al, ; Gillis et al, ; Moriya, ) lung (Barlési et al, ; Stefanelli et al, ), head and neck (Van Bokhorst‐de Van der Schuer et al, ), breast (Garssen et al, ), bladder (Jensen, Krintel Petersen, Jensen, Lausten, & Borre, ; Jensen, Petersen, Jensen, Laustsen, & Borre, ) and prostate (Bales et al, ; Burgio et al, ; Parker et al, ) cancer or included individuals with a range of cancers (Schmidt et al, ). Trial designs were primarily feasibility studies, and therefore, the studies were rarely powered to determine the efficacy of prehabilitation on post‐treatment recovery outcomes.…”