The only way to get muscle mass definition is by lowering fat and then increasing muscle mass because the tissue around the muscle can only be tight if it's stretched by the enlarged muscle.  Not only does this look good, but it also stabilizes your entire joints and bones. Your strength and your daily energy consumption will increase. because more muscles also consume more energy.  Furthermore, you also counteract the age-related and natural decrease in muscle mass. with a target training program and nutritional concept, you will soon feel and see your first successes.