A plank is more difficult than it looks. You have to use all of your muscle groups, including your core, abs, arms, back, shoulders, glutes and legs. It’s normal to struggle to do a plank. Many of my ...

The plank feels endless—but it’s one of the most effective core exercises. Your ideal hold time depends on your age, fitness ...

Want a single move that will give you rock-hard abs? No problem: Build a solid core with deceptively simple plank exercises. We don’t know too many people who get excited about doing planks. Generally ...

The plank works the entire body — the core, abs, arms, back, shoulders, glutes and lower body, and it can help with back pain. I recommend that my clients include this low-impact exercise regularly in ...

Planks are the MacGyver of bodyweight movements: They’re super tough and great for almost any situation. The versatile move is best known for working your core, but planks also engage more than 20 ...

As a former U.S. Marine, Erin Oprea is dedicated to fitness. Now a Nashville-based personal trainer with clients like Carrie Underwood, she uses her expertise to help those with busy lives stay fit.

A personal trainer shares a three-move bodyweight workout you can do without weights to strengthen your abs and arms.

The move that Venus Williams loves to hate. Women's tennis great Venus Williams has won four Olympic medals and 44 career titles, second only to Serena Williams among active players. What's her secret ...