A significant negative association was found between aerobic exercise intensity and fatigue reduction .
A peak effect was found for moderate-intensity aerobic exercise for improving walking endurance .
No dose-response relationship was found between exercise and markers of inflammation or exercise duration and outcomes .
Rates of adherence were typically high and few adverse events were reported .
Exercise is safe , reduces fatigue and increases endurance in cancer survivors .
QUESTION Is there a dose-response effect of exercise on inflammation , fatigue and activity in cancer survivors ?
Effectiveness of a 12-month exercise program on physical performance and quality of life of breast cancer survivors.
AIM The study aim ed at determining whether physical exercise training improves the quality of life ( QoL ) and physical fitness of breast cancer survivors . PATIENTS AND METHODS A total of 573 breast cancer survivors were r and omized into an exercise or a control group , 12-months after adjuvant treatments . EORTC QLQ-C30 and BR-23 question naires were used for evaluation of QoL , FACIT-F for fatigue and the Finnish modified version of Beck 's 13-item depression scale ( RBDI ) for depression . Physical fitness was assessed by a 2-km walking test , and a figure-8 running test and physical activity ( PA )  by metabolic equivalent ( MET ) hours per week ( MET-h/wk ) . RESULTS Figure-8 running time improved significantly among the patients of the intervention group compared with the controls ( p<0.001 ) . No significant between-group differences were observed in 2-km walking time , in PA , EORTC-QLQ-C30 , BR-23 , FACIT-F or BDI . However , there was a linear relationship between increased PA and improved QoL ( p=0.006 ) , irrespective of the intervention . CONCLUSION Increase in physical activity was associated with improved QoL , but no effect of the exercise intervention was observed
A significant negative association was found between aerobic exercise intensity and fatigue reduction .
A peak effect was found for moderate-intensity aerobic exercise for improving walking endurance .
No dose-response relationship was found between exercise and markers of inflammation or exercise duration and outcomes .
Rates of adherence were typically high and few adverse events were reported .
Exercise is safe , reduces fatigue and increases endurance in cancer survivors .
QUESTION Is there a dose-response effect of exercise on inflammation , fatigue and activity in cancer survivors ?