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.
Floor Press, Dumbbell, Rotating Grip with Feet Up. The Rotating Grip Dumbbell Floor Press with Feet Up and is an effective exercise for strengthening and developing the chest muscles. Using the floor is a great alternative if a bench is not available to you.