Purpose: The purpose of this systematic review with meta-analysis was to evaluate the safety, feasibility and effectiveness of physical exercise in the palliative care phase for people with advanced cancer.
Methods: Electronic databases were searched for exercise randomised controlled trials involving individuals with incurable cancer that were published prior to April 14, 2021. Meta-analyses were performed to evaluate the effects of exercise on health outcomes. Subgroup effects for exercise mode, supervision, intervention duration and cancer diagnosis were assessed.
Results: Twenty-two trials involving interventions ranging between 2 weeks and 6 months were included. Interventions comprised of aerobic (n=3), resistance (n=4), mixed-mode (n=14) and other exercise (n=1) modalities. Cancer types consisted of lung (n=6), breast (n=3), prostate (n=2), multiple myeloma (n=1) and mixed cancer types (n=10). Meta-analysis of 20 RCTs involving 1840 participants showed no difference in the risk of a grade 2–4 adverse event between exercise and usual care (n=110 adverse events [exercise: n=66 events; usual care: n=44 events], RD= -0.01 [91% CI=-0.01, 0.02]; p=0.24). Overall median recruitment, retention and adherence rates were 91%, 80% and 69%, respectively. Meta-analysis of health outcomes showed effects in favour of exercise for quality of life, fatigue, aerobic fitness and lower-body strength (SMD range=0.27-0.48, all p<0.05).
Conclusions: Participants who engaged in physical exercise experienced an increase in quality of life, fitness and strength and a decrease in fatigue.
Implications for Cancer Survivors: Physical activity programs were found to be safe and feasible for people with advanced cancer in the palliative care phase.