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 ?
Six-Month Follow-up of Patient-Rated Outcomes in a Randomized Controlled Trial of Exercise Training during Breast Cancer Chemotherapy
Background : Few exercise trials in cancer patients have reported longer-term follow-up . Here , we report a 6-month follow-up of exercise behavior and patient-rated outcomes from an exercise trial in breast cancer patients . Methods : Breast cancer patients initiating adjuvant chemotherapy ( n = 242 ) were r and omly assigned to usual care ( n = 82 ) , resistance exercise training ( RET ; n = 82 ) , or aerobic exercise training ( AET ; n = 78 ) for the duration of their chemotherapy . At 6-month follow-up , participants were mailed a question naire that assessed quality of life , self-esteem , fatigue , anxiety , depression , and exercise behavior . Results : Two hundred one ( 83.1 % ) participants provided 6-month follow-up data . Adjusted linear mixed-model analyses showed that , at 6-month follow-up , the RET group reported higher self-esteem [ adjusted mean difference , 1.6 ; 95 % confidence interval ( 95 % CI ) , 0.1 - 3.2 ; P = 0.032 ] and the AET group reported lower anxiety ( adjusted mean difference , −4.7 ; 95 % CI , −0.0 to −9.3 ; P = 0.049 ) compared with the usual care group . Moreover , compared with participants reporting no regular exercise during the follow-up period , those reporting regular aerobic and resistance exercise also reported better patient-rated outcomes , including quality of life ( adjusted mean difference , 9.5 ; 95 % CI , 1.2 - 17.8 ; P = 0.025 ) . Conclusions : Improvements in self-esteem observed with RET during breast cancer chemotherapy were maintained at 6-month follow-up whereas reductions in anxiety not observed with AET during breast cancer chemotherapy emerged at 6-month follow-up . Moreover , adopting a combined aerobic and resistance exercise program after breast cancer chemotherapy was associated with further improvements in patient-rated outcomes . Exercise training during breast cancer chemotherapy may result in some longer-term and late effects for selected patient-rated outcomes . ( Cancer Epidemiol Biomarkers Prev 2007;16(12):2572–8
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 ?