The impact of physical activity on breast cancer survivors

INTERVENTION: The study will include women treated for non‐disseminated breast cancer in Oncology Centre in Katowice. The intervention will consist of two stages. In the first stage, after the medical examination and meeting the inclusion criteria, patients will be randomly assigned by the attending physician to participate in the study to one of the three groups. 1. In the first experimental group 60 patients will receive general fitness exercises (two times a week for 45 minutes), virtual reality based exercises (once a week for 45 minutes). All patients will also take part in a series of educational meetings twice a week for 45 minutes. 2. In the second experimental group 60 patients will receive general fitness exercises (two times a week for 45 minutes), water aerobics exercises (once a week for 45 minutes). All patients will also take part in a series of educational meetings twice a week for 45 minutes. 3. The third group (control) will consist of 60 patients who do not exercise for 6 weeks, but only obtain information in a series of educational meetings on the importance of physical activity in the treatment and prevention of cancer. But after 6 weeks, patients from the control group have the opportunity to take part in exercises conducted in experimental groups if they are willing to do so. In all experimental groups, physical exercises will be conducted 3 times a week for 6 weeks. During a series of meetings, information will be provided on the prevention of breast cancer, nutrition in oncological disease, lymphoedema prevention, risk factors for cancer, the importance of physical activity in the prevention and treatment of cancer and side effects resulting fr CONDITION: The impact of physical activity on health in breast cancer survivors ; Not Applicable PRIMARY OUTCOME: ; 1. Quality of life assessed with the EORTC QLQ – C30 ‐ Quality of Life Questionnaire of Cancer Patients at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 2. Quality of life assessed with the EORTC QLQ – BR 23 ‐ Quality of Life Questionnaire for Breast Cancers at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 3. Postural stability assessed by AMTI's AccuGait Optimized™ multi‐axis force platform tests at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 4. Postural stability assessed by Timed Up and Go test (TUG) at baseline, after finishing 6‐week physical training and 6 weeks after treatment; SECONDARY OUTCOME: ; 1. Physical activity level assessed by Physical Activity Questionnaire (IPAQ) questionnaire at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 2. Fatigue level assessed by Brief Fatigue Inventory (BFI) at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 3. Locomotor function assessed by 4‐Meter Gait Speed test (4MGS) at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 4. Pain is measured using a visual analogue scale (VAS) at baseline, after finishing 6‐week physical training and 6 weeks after treatment; 5. Fall risk is measured using the Falls Efficacy Scale‐International (FES‐I) at baseline, after finishing 6‐week physical training and 6 weeks after treatment; INCLUSION CRITERIA: 1. Patient's written consent to participate in the study 2. Age 30 ‐ 70 years 3. First treatment of non‐disseminated breast cancer 4. 0 ‐ III degree of cancer 5. Overweight and obesity (BMI >25 kg/m²) 4. Treatment of breast cancer (mastectomy and minimally invasive surgery) 5. Adjuvant treatment (chemotherapy, immunotherapy, hormone therapy, radiotherapy) based on the medical indications 6. Completed radiotherapy and chemotherapy from 4 weeks to 6 months before the study start 7. No physical training for more than 60 minutes a week before the start of the study 8. Hormone therapy and/or immunotherapy, 9. Minimum of 5 years from the end of treatment for another malignant tumor