The objective of the project is to analyze the clinical effectiveness of a gamifield mHealth application (iGAME) and developed in the context of lifestyle modification, but with the approach of the Behaviour Change Technique, through a randomized clinical trial that affects secondary prevention in three clinical subtypes of noncommunicable diseases, where lifestyle modification is the center of its best practice.

Despite digital exposure, gamification of health has been widely understood and often applied ad hoc in health products. Attempts to incorporate game concepts into digital health applications have not led to demonstrated success. Recent studies have shown that only 4% of the best rated health apps in Apple stores and Google Play (based on revenue and download) have gamification elements, but less than 5% of these health apps have been included in the application library of National Health Service. In addition, very little of 5% was developed for industry and health professionals.

If the power of digital technologies, such as games for clear clinical benefits, is not released, opportunities for social and economic burial will be lost for all stakeholders in the digital health and digital economy ecosystem.

A number of factors in this barrier:

• The best techniques for the design of activities. The majority of health gamification has little consistent support of health or clinical theories.
• The high cost and complexity of the digital game development process. The majority of gaming functions are based on best practices in the development of digital games.
• Little participation of researchers in health, professionals and participation of the end user in the process of gamification development. Very little health gamification is formally evaluated clinically.

The initial hypothesis is that after 12 weeks of participation in the original iGAME application, participants will increase the quantity and distribution of energy consumption, through the estimation of results, data based on acceleration and questionnaires. automatic information In addition, it will also improve satisfaction and lifestyle, as well as the consumption of health services.

IInclusion Criteria for Breast Cancer Survivors subgroup:

• Men and women
• Age between 18 and 65 years
• Sedentary behavior recognized by the subject: <1.5 METS per day and sitting> 4h / d .
• Intention to change sedentary behavior manifested by the subject
• Survivors of breast cancer. Women with a clinical history of diagnosis of primary breast cancer, having completed surgical treatment, radiotherapy or chemotherapy at least three months before starting the study intervention

Inclusion Criteria for Low Back Pain subgroup:

• Men and women
• Age between 18 and 65 years
• Sedentary behavior recognized by the subject: <1.5 METS per day and sitting> 4h / d .
• Intention to change sedentary behavior manifested by the subject
• Mild low back pain of mechanical or degenerative cause diagnosed by a primary care physician

Inclusion Criteria for Depression subgroup:

• Men and women
• Age between 18 and 65 years
• Sedentary behavior recognized by the subject: <1.5 METS per day and sitting> 4h / d .
• Intention to change sedentary behavior manifested by the subject
• Mild depression Diagnosis in Primary Care using the MINI interview to rule out another severe mental pathology and the PHQ-9 questionnaire to categorize the level of depressive severity

Exclusion Criteria:

• Several mental illness
• Several illness that limits physical ability
• Phobia for digital technologies
• Difficulty in attending study measurements

The results emerging from this study are positive, negative or inconclusive with respect to the proposed hypothesis, these will be attempted to publish as scientific production in journals of high impact in the area of knowledge and indexed in Journal Citation Reports of ISI-Thompson, preferably of the 1-2th quartile. In addition, we will try to select Open Acess journals to favor the scientific dissemination of the results. In the same way, the results will be exposed in communications, papers, forums and discussion tables of different scientific and cultural days.

Free access since its publication in impact journals (Q1 - Q2).

Open access.

The system of randomization for the participants is through an external computer system.