Looking for a move to target you shoulders, core, and legs? Give Side Plank Star a try. It's tough to balance at first, but once you start including this move in your strength training sessions, you'll gain stability and strength. I also love this exercise since it works the glute med, the muscle on the side of the pelvis, that is a great stabilizer when running.

To find out how to do this exercise read more.

• Come into a plank position (top of a push-up), with your arms straight and your shoulders over your wrists.
• Now roll over to your right side, so you're balancing on your right hand and the outside edge of your right foot. Flex both feet and lift your left arm straight in the air.
• Keeping your spine lengthened and your abs engaged, lift your left leg up as high as you can. Then slowly lower it back to your bottom leg.
• Do two sets of 10 repetitions on each side, but work up to doing 20 reps each side in a single set.