Abdominis abdominal muscle Hip flexors hip flexors Glutes buttocks Hip adductors adduction muscles DIFFERENT PHASES OF TARGETED TRAININGnasm opt According to OPT there are three levels TestoBoost pro of training Stabilization Strength and Power and these are divided into five smaller phases Stabilization endurance stabilization Force endurance strength Muscle growth strength Maximum force force Power training power People who walk into a gym unconditioned should therefore start at level When these people have been well trained have stability and have a good attitude they would take the next step to level As described above many people