Tip: The Single-Arm Crossover

This is a double duty exercise. First it strengthens your core. Then, when your core is stronger, it's a great unilateral chest exercise.

The single-arm crossover is a great core exercise that employs a very long lever. For this reason, you don't need as much resistance to elicit high muscle forces.

At first this will primarily be a core exercise, but as your core gets stronger you'll receive an amazing pec workout along with it.

Bret Contreras is considered by many to be the world’s foremost expert on glute training. He has turbo-charged the fitness industry by introducing effective new exercises and training methods for optimal glute development. Follow Bret Contreras on Twitter