The utility of assessing physical activity in ovarian cancer patients following chemotherapy
19666 Objective: The purpose of this preliminary study was to explore the utility of objective assessments of physical activity for investigating the patterns and predictors of reduced physical activity levels in patients receiving standard chemotherapy for ovarian cancer. Methods: Ovarian cancer patients receiving standard regimens of Taxol/Carboplatin chemotherapy (n=9) were recruited prior to their treatment infusion. After signing informed consent, they completed the 20-item Center for Epidemiologic Studies Depression Scale (CESD); post treatment daily activity levels were assessed with a wrist watch-sized, water proof, omnidirectional, actigraphy monitor (Actiwatch-64, Mini Mitter, Bend, OR) worn on the nondominant wrist for the three weeks between treatment cycles. Identical actigraphy data were collected on a sample of healthy female staff (n=9) over a 1 week interval to provide a benchmark for comparison. Results: As expected, waking activity levels in the control sample showed no significant changes across days (p=0.41), so mean levels (343.45 counts) and 95% confidence intervals were calculated for comparison purposes. Chemotherapy patients had significantly lower levels of activity, as well as evidence of recovering physical activity over the 21 days following treatment (p=0.01). Interestingly, the subset (n=4) of patients with higher levels of pretreatment depression (Hi-CESD) did not show significant recovery in physical activity while the Lo-CESD subgroup showed substantial recovery (p=0.001). Conclusions: Objective assessment of physical activity in ovarian cancer patients following chemotherapy treatment reveals significant reduction in activity levels, and a failure to recover in patients with higher levels of pretreatment depression. Actigraphy of daily activity levels may provide a sensitive means of quantifying reductions in physical activity and recovery patterns following chemotherapy treatment for gynecologic cancer. No significant financial relationships to disclose.