The clinical management of chemotherapy-induced nausea and vomiting with adjuvant Progressive Muscle Relaxation Training (PMRT) and imagery techniques in breast cancer patients

INTERVENTION: PMRT 1 hour prior to chemotherapy administration and daily thereafter for another 5 days (total of 6 PMRT sessions). Each session lasts for 25 minutes followed by 5 minutes of imagery techniques. CONDITION: Breast cancer ; Cancer ; Breast cancer PRIMARY OUTCOME: Not provided at time of registration SECONDARY OUTCOME: Not provided at time of registration INCLUSION CRITERIA: 1. Patients diagnosed with breast cancer and have no exposure to cytotoxic chemotherapeutic agent prior to the study (chemotherapy‐naive) 2. Females between the age of 18 ‐ 70 years 3. Clinical indication to receive adriamycin with cyclophosphamide (AC) as adjuvant or salvage chemotherapy for treatment of breast cancer 4. Able to read and write Chinese 5. Agree to sign the informed consent