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Kathy Ruble, Susan Scarvalone, Lisa Gallicchio, Catherine Davis and Diane Wells


: Inadequate physical activity (PA) in childhood cancer survivors may lead to compromised health outcomes. The purpose of this pilot study was to evaluate the feasibility and effect of a PA intervention in childhood cancer survivors ages 8–12 who report < 1 hour of moderate-to-vigorous physical (MVPA) per day.


Twenty survivors were randomized to a 6-month group PA intervention or to a control group. A pre/post measure of MVPA was completed by all participants, and a pre/post measure of self-efficacy was completed by the intervention group. Analysis included measures of feasibility, change in percentage of awake time spent in MVPA, self-efficacy scores, and correlations in MVPA and self-efficacy.


All feasibility parameters were confirmed. Increases in percent of awake time spent in MVPA were seen in 67% of the intervention group and 14% of the control group. A medium effect size (r = 0.55) was calculated for the correlation between change in MVPA and change in total self-efficacy scores; the largest effect size (r = 0.62) was found for the subscale for adequacy.


Increases in MVPA can be seen in childhood cancer survivors who participate in a group intervention that includes support of self-efficacy.