The Women In Steady Exercise Research (WISER) Survivor Trial

Inclusion Criteria: * breast cancer survivor * overweight or obese (BMI of 25 or greater) * must have breast cancer related lymphedema * at least 6 months post-treatment (e.g. surgery, chemotherapy, or radiotherapy) but there will be no upper limit on time elapsed from diagnosis * the eligible age range will have no lower limit. * currently free of cancer Exclusion Criteria: * medical conditions or medications that would prohibit participation in an exercise program or would negatively impact our ability to test our primary aims * inability to walk for 6 minutes unaided * extremely obese (body mass index greater or equal to 50 kg/m2) * plans for additional (e.g. curative or reconstructive) surgery during the study period * self-report of weight-lifting within the past year * already engaging in 3 or more times weekly aerobic activity of moderate intensity * planning to move away from the area over the next year * current use of weight loss medication (OTC or prescription) * self-report of alcohol or substance abuse within the past 12 months, including at-risk drinking (current consumption of more than 14 alcoholic drinks per week) * weight loss of greater than 10 % in the past 3 months * history of bariatric surgery * women who are pregnant