Adapted Boxing and Photography in Haematology: Body Image and Self-Esteem

Inclusion Criteria: 1. Patients aged 18 or over 2. Patients diagnosed with cancer currently undergoing treatment in a haematology department (e.g. leukaemia, lymphoma, multiple myeloma, etc.), at various stages of their treatment journey 3. Patients considered sufficiently stable to undertake adapted physical activity following medical assessment (no medical contraindications to practising adapted boxing) and for whom it is offered as part of their standard care 4. Patients who have given their consent to participate in the study 5. Patients covered by a statutory health insurance scheme 6. Patients who have been prescribed adapted physical activity by a doctor Exclusion Criteria: 1. Minors 2. Individuals subject to a court-ordered protective measure (judicial protection order, guardianship, curatorship, etc.) 3. Inability to provide the individual with informed consent (difficulties in understanding, insufficient command of French, etc.) 4. Patients with neurological or psychiatric disorders, including severe depression 5. Pregnant women (this criterion will be recorded based on the patient's statement) 6. Breastfeeding women