The Suitcase Carry focuses on anti-lateral flexion to help prevent side bending. This is a great exercise that challenges an athlete’s overall stability, strength, grip strength, and resistance to lateral flexion while maintaining a good posture which is important during athletic movements.
While the Suitcase Carry forces you into good posture it's also helping to build posterior strength as well as a stronger core. As you perform the exercise your core is firing and working throughout the movement.
This exercise is also unilateral, which means you’ll be working out one side at a time over a given distance, a certain amount of steps, or time. To help prevent lateral flexion or side bending make sure to pull your ribcage down on the opposite side of the weight and hold your core tight.