Preoperative exercise in cancer patients improves physical fitness and post-surgical function, but research has not demonstrated significant reductions in hospital length of stay or surgical complications.
"In the cancer area, we haven't demonstrated quite as strong a benefits. We can show that if you get some exercise before surgery, that you are fitter prior to surgery and that you end up being fitter and able to function better physically after surgery, but not really the reductions in, say, length of hospital stay or the complication rate" (said at 0:20:35)
The claim consists of two distinct assertions. The speaker correctly notes that preoperative exercise (prehabilitation) in cancer patients improves preoperative physical fitness and post-surgical functional capacity. However, the speaker's second assertion—that research has not demonstrated reductions in hospital length of stay or surgical complications—is contradicted by published meta-analytic evidence. Systematic reviews and overviews of randomized controlled trials (RCTs) in surgical cancer populations show that preoperative exercise and prehabilitation significantly reduce postoperative complication rates and shorten hospital length of stay.
- contradicts: Postoperative outcomes of preoperative exercise training in patients with operable non-sma… (Frontiers in oncology 2025)
"Compared with no preoperative exercise, preoperative exercise training significantly reduced the postoperative complications (OR = 0.33, 95%CI: 0.24 to 0.46, P < 0.0001) and postoperative length of hospital stay (95%CI: -3.11 to -1.40, P < 0.0001)." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: Prehabilitation in adult cancer patients: an overview of systematic reviews. (BMJ open 2026)
"Low- to moderate-certainty evidence indicated that prehabilitation may improve preoperative physical fitness (eg, 6-minute walk test, preoperative cardiopulmonary function, preoperative lung function), reduce surgical complications and shorten the length of hospital stay." (abstract, results, passage verified)
pubmedfull study (doi)