The best core strength training workouts are those that require speed, strength, balance and coordination. The American College of Sports Medicine "Resources for the Personal Trainer" states that when you work your core muscles, it's important to use a combination of isolation exercises and compound movements to stimulate the most overall muscle growth.
Like the traditional push-up, this movement works the chest, shoulders, triceps and quadriceps. The firecracker push-up adds a jump and clap to the end of each push-up. The American Council on Exercise states that adding a plyometric element to the top of the movement forces the transverse abdominals to stabilize and work even harder, developing more core strength in the process. To perform it, get onto to the ground in a classic push-up position. Put your palms about shoulder width apart and extend your legs straight behind you. Lower yourself by bending your arms at the elbow and bringing the chest to the ground. Push back up as hard as you can, lifting your hands off the ground so that you can quickly bring your palms together--under your chest--and clap your hands. Immediately after you clap, catch your fall by bringing your palms quickly back to the floor. This is one repetition. Try to complete at least five per set. Do two to three sets.