The objective of this clinical trial is to assess the feasibility of applying different gamified exercises doses in older adults. It will also learn from possible adverse effects of the intervention.

The main questions this clinical trial aims to answer are:

• Are there any differences between heart rate, perceived exertion and enjoyment between groups?
• Are there any adverse effects? What is the magnitude of these adverse effects?
• Are there any correlations between gamification time and the occurrence of adverse effects?

A randomised clinical trial will be conducted in which the use of exercise doses between 10 and 30 will be tested. Participants will be recruited from Nueva Esperanza nursing home, Fuensalida, Toledo. The study will be conducted according to the CONSORT statement for clinical, crossover and parallel trials.

The study will have a total of two experimental groups, with different intervention times, between 10 and 30 minutes, respectively, using a mobile application. The intervention will consist of performing exercise in pairs in a single bout during the mentioned times.

Inclusion Criteria:

• subjects over 60 years of age
• score equal to or greater than 20 on the Mini Mental cognitive test
• Subjects that present the ability to stand without the use of technical aids or with the technical assistance of a device used for walking.

Exclusion Criteria:

• severe visual impairment
• medical contraindication for physical activity
• pathology or problem that could prevent the test from being carried out.

Data will be provided to other researchers if asked to the principal investigator