Effectiveness of Individualized Exercise Program, Combined With a Balanced Diet on the Evolution of Body Fat

Arm 1: LIPOXmax arm. Subjects will perform a physical activity 4x1 hour per week at the optimal intensity for fat oxidation (LIPOXmax) measured by indirect calorimeter.

Arm 2: physical activity standard arm (60% of VO2max measured by cardio respiratory exercise test). Subjects will realize 4 sessions per week and duration of sessions will be adjusted so that arms 1 and 2 have the same total energy expenditure by session.

"Arm 3: The subjects initially receive the recommendations of good medical practice for physical activity (achieving at least 30min per day of moderate exercise)."

all groups will be supplemented in fruits and vegetables (5 per day) during all the study