Marine Corps Reference Publication (MCRP) 5-12C, Marine Corps Supplement to the. Department of Defense Dictionary of Military and Associated Terms, is an extension of. JP 1-02 and provides Marine Corps-specific terms and definitions.
To do them: 1  Lay on your back with a dumbbell in each hand. 2  Extend your arms out to your side, as if your were forming a cross. 3  Slowly, with your arms still extended, curl your hands together until the dumbbells meet above the center of your chest. 4  Slowly return your arms back to your sides.
Determine an appropriate strength level that will allow chest development to be seen (chest mass). Train chest with enough intensity and volume to induce great definition. Hit the chest from different grips and body planes. Balance your chest training with back training to be at a ratio of 2-or 3-to-1. In other words, for every chest exercise, you should do 2-3 back exercises.