Like most exercises, in addition to working the core, the Shoulder Press works the shoulders, triceps and trapezius muscles.

This exercise can be done with either kettlebells or dumbbells.

Begin standing with your feet hip width apart with your arms at a 45 degree angle away from your body, and weights to shoulders. Extend your arms all the way up towards the ceiling until they are straight above your head.

Throughout the movement try to minimise movement through the rest of your body by engaging your core. If you are still finding movement through your hips I would recommend dropping down to a lower weight.