Impact of Personalized and Remote Support Centered on Exercise and Physical Activity for Breast Cancer Patients

Inclusion Criteria: * Patient ≥18; * Diagnosis of invasive non-metastatic breast cancer; * 5 months (+/- 3 months) after the end of the treatment by surgery and/or radiotherapy and/or chemotherapy and/or other "short-term" systemic treatment : immunotherapy, PARP inhibitor, trastuzumab or TDM1 ; the continuation of hormonotherapy (more or less associated with an anti-CDK4/6), trastuzumab or TDM1 is possible during the study period; * SF-36 filled in completely * Medical certificate for sports practice delivered by a healthcare professional or oncologist. Neither the previous sports practice, nor the motivation for the proposed program is necessary to participate in the program. * Agreement for follow-ups during the study period lasting 12 months; * Ability to understand, read and write French; * Patient covered by the French "Social Security" regime; * Signed informed consent for the participation in the study, including the randomization with a 50%/50% chance of being allocated to one or the other group. Exclusion Criteria: * Relapse of invasive breast cancer (loco-regional relapse, contralateral relapse) * Inability to exercise because of a severe handicap or vulnerability. These contraindications are left to the discretion of the healthcare professional assessing capacity (ex : severe malnutrition, pregnancy …); * Metastatic cancer; * Expressed preference for one arm; * Inability to comply with follow-up (4 and 12 months) of the trial (geographical, social, medical or p…