Static holds might be stalling your progress; discover the dynamic movements that stabilize your spine, sharpen your balance, ...

Aim for a 45–90 second plank after 50. Learn how to test safely, spot form red flags, and build real core endurance.

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 ...

Learn how to do the Copenhagen plank, a challenging side plank variation that strengthens your hips and core and improves ...

This is a full-body exercise, but it also tests your stability, balance and control by holding your muscles under tension the whole time while moving your limbs through a range of motion. Although ...

Really want to get into the deepest parts of your core? How about a plank? There are difficult varieties like the hardstyle plank and eight-point plank, a favorite of pro surfer Lakey Peterson. There ...

I asked fitness expert Dr. Femi Betiku to share more about the problems with a weak core for runners. A weak core means a ...

You've got your jumping jacks dialed, and you know how to do a plank . . . but have you tried plank jacks? This intermediate bodyweight move has likely cropped up in your workouts at some point — and ...

Pilates pro Simone de la Rue demonstrates how to do a plank jack—aka the ultimate cardio and core-strengthening move—with proper form. A little known fact about planks: In addition to working nearly ...

Remember those times in elementary school gym class where you had to do the plank test? Turns out, your P.E. teachers really had your future fitness in mind. Planks are essential in every training ...

We’ve brought you workouts to improve your pushup abilities and get toned arms and legs, and today we’re tackling abs. What better way to target the core than with that reliable standby, planks? Mike ...