Strengths and limitations
This study should be considered in context of its strengths and limitations. As a qualitative study, results could be influenced by a variety of factors, including intrinsic biases of interviewers, coders and researchers. While we used best practices to recruit our sample and to achieve data adequacy, there may be selection bias as our participants were individuals willing to both participate in a randomized trial of prehabilitation and a nested, qualitative study. The current study focuses on people living with frailty who required oncologic surgery. The duration of prehabilitation was generally in line with other programs described in the literature [