Resumen:
This work presents a system for strengthening upper limbs in chil-dren through an teractive videogame system and the use of myoelectric mus-cle sensors. The system allows the acquisition of myoelectric signals taken by electrodes placed in the muscles of interest so they are sent to the computer to be visualized in the virtual interface. Several virtual interfaces were developed in the Unity 3D graphical e ngine in which the de gree of difficulty of the video-game can be selected as well as the muscle affectation and the duration of the repetitions of each exercise. User personal data is stored in a data sheet. The da-ta transmission is carried out using Bluetooth wireless technology in charge of establishing a reliable and real -time communication. Tests were performed on 5 users (3 boys and 2 girls) with ages between 6 to 12 years, and the SUS usabil-ity test was applied with results (84.5 ± 0.62), which allows to determine that the system has a good acceptance to be used in muscle strengthening.
