A plank is a core exercise that requires glute and leg strength, as well as shoulder stability. To hold a plank, you need to keep your spine neutral and support it with your abdominal muscles. That ...

Text and Demonstration by Anna Maltby Visuals by Theodore Tae A lunge is a lower-body exercise that builds leg strength, especially in the quads, hamstrings and glutes. Practicing lunges can help your ...