Inclusion Criteria:  Woman who completed (neo)adjuvant chemotherapy since less than 1 year for a breast cancer Woman under hormonotherapy, or menopausal woman, or woman in amenorrhea  Exclusion Criteria:  Pregnant and nursing woman psychiatric, musculoskeletal or neurological disorders presenting at least one contraindication to the use of the transcranial magnetic stimulation presenting at least one contraindication to the realisation of the maximum effort test