Fitness experts reveal what planks can and can't do for your body. Discover a smarter way to train your core for real results.

A physical therapist explains the benefits of the plank exercise as well as challenging plank variations to try When you purchase through links on our site, we may earn an affiliate commission.

The plank exercise works the abs, arms, back and glutes. But performing it properly is key to reaping the benefits and reducing back pain.

This week's exercise certainly meets the criteria for functional training. The Plank to Scorpion Reach challenges the core, upper body and hips to work in unison for maximum mobility.

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 ...

When it comes to core exercises, the plank is the where it's at. Try these plank variations to modify the exercise or increase the challenge, or simply to spice up your next workout.

"Direct core exercises and planks have never been a part of my exercise routine to keep ab strength and definition," said Anna Brodetsky-Lubischer, co-owner and personal trainer at Lubischer's ...