Monitoring aerobic capacity in cancer survivors using self-reported questionnaires: criterion validity and responsiveness.
Anouk T R WeemaesRenske MeijerMilou BeelenMartijn van HooffMatty P WeijenbergAntoine F LenssenLonneke V van de Poll-FranseHans H C M SavelbergGoof SchepPublished in: Journal of patient-reported outcomes (2023)
The self-reported FitMáx©-questionnaire has sufficient validity to estimate aerobic capacity in cancer survivors at group level. The responsiveness of the FitMáx©-questionnaire for absolute change is limited, but the questionnaire is able to detect whether aerobic capacity improved. The FitMáx©-questionnaire showed substantial better values of validity and responsiveness compared to DASI and VSAQ.