Patients with breast cancer undergo a series of psiclofisicas alterations during cancer treatment, chemotherapy phase being one of the more aggressive ete effect. These changes reduce the quality of life and result in a loss of physical health-related condition. Studies have shown that the practice of physical exercise and rehabilitation strategies enhance or attenuate the impact of chemotherapy on quality of life of patients. At present, technological development from telerehabilitación systems is a promising strategy that enables fast and efficient communication between health professionals and patients, especially at this stage of the disease where the patient may encounter difficulties in matching measures improving their lifestyle with aggressive medical treatment.

To carry out this study a controlled study masked, parallel-group done were conducted usual care control group and an intervention based on a web system telerehabilitación to improve the physical condition associated with health and performed quality of life.

The CUIDATE group will identify impairments of participants at baseline assessment. The aims based on weekly improvements will be set to facilitate the final goal. After each training session there will be feedback between the participant and the CUIDATE group to change or improve any exercise or activity. This feedback will allow to us to select adequate exercises and levels of difficulty. As a result, a modifiable personal training will be assigned to each one focusing on cardio-respiratory, mobility, and endurance performance through online system rehabilitation (using written instructions, HD videos, and audio files).

Inclusion Criteria:

• Diagnosis of stage I, II, or IIIA breast cancer
• Medical clearance of participation
• Access to the Internet
• Basic ability to use a computer or living with someone who has this ability
• In chemotherapy treatment at present moment;
• Have interest in improving lifestyle: fitness level
• Have signed informed consent

Exclusion Criteria:

• Chronic disease or orthopedic issues that would interfere with ability to participate in a physical activity program;