Clinical Research Directory

Inclusion Criteria: * Histologically confirmed stage I-III breast or colorectal cancer * 18 years of age or older * Completed adjuvant treatment(for current malignancy) * Completion of all adjuvant chemotherapy and radiation (with the exception of adjuvant herceptin and/or tamoxifen/aromatase inhibitor therapy for breast cancer patients) between 2 and 36 months prior to enrollment * Ability to speak and read English * Willingness to be randomized * Medical clearance from an oncologist or primary care physician stating the participant is able to participate in an unsupervised, moderate-intensity physical activity program * No major surgery within 2 months of study enrollment or planned during study period Exclusion Criteria: * Metastatic cancer * Uncontrolled intercurrent illness including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness that would limit compliance with study requirements * Plans to have hip or knee replacement within a year * Participation in more than 60 minutes a week of moderate-intensity recreational activity as assessed by the International Physical Activity Questionnaire Short Form * BMI \>47