Physical inactivity is one of the risk factors of Coronary heart disease. Physical activity protects against the development of CVD and also favorably modifies other risk factors, however a huge part of the population lead a relatively sedentary lifestyle. Virtual Trainer (VT) Concept is a technological platform for the controlled practice of physical training to achieve better cardiovascular fitness results that includes a motivational environment crated to support the long term compliance with the training program. VT consist of a technological platform, a method for the fitness condition assessment and the motivational multimedia environment. This paper describes the firsts results achieved in the project on the technological platform and the fitness condition assessment.