Physical activity after cancer treatment in adults with cancer-related fatigue: a systematic review of randomized trials with fatigue as an eligibility criterion
Physical activity (PA) is recommended for the management of cancer-related fatigue (CRF), yet the evidence is primarily based on interventions delivered during cancer treatment, with no eligibility criterion for fatigue. The objective of this systematic review was to summarize and evaluate the effect of PA on CRF after cancer treatment (i.e. post-cancer fatigue), using randomized trials where fatigue was an eligibility criterion. Data from 19 eligible studies were extracted by two reviewers. An estimated 7% of all trials on PA for CRF include an eligibility criterion for fatigue after cancer treatment. Sixteen studies were included in a random-effects meta-analysis. Based on studies with substantial heterogeneity and high risk of bias, the effect of PA on post-cancer fatigue was modest and variable (Hedge’s g -0.40; p = 0.010; 95% prediction intervals -1.41 to 0.62). Additional transparently reported randomized clinical trials are needed to better understand the benefits of PA for post-cancer fatigue.