Exercise is an important activity that allows maintaining an optimal health for executing daily activities impacting the quality of life, these may be health-care oriented, physical therapy and fitness, among others. The engagement on physical activity requires intrinsic motivation, which may be affected due to the exercising characteristics, such as repetitive tasks, lack of time and proper feedback, help preventing musculoskeletal disorders. Among the current trends in e-health, exergaming is gaining momentum as a tool that provides motivation and positively impact the activity. This trend has led to a big development of such apps on different markets. This project presents the development of an exergame for Android OS using inertial sensors for motion capture of the lower member flexion/extension, with data and visual feedback through reports.