Use this plank hack to boost your core strength in half the time. Foster's adjustment is refreshingly simple. "Once in position, concentrate on pulling your elbows towards your toes," she says.

Holding a plank for 60 seconds or more activates multiple muscle groups, boosts endurance, and improves posture. Studies show ...

Over 40? If you can hold a plank this long with perfect form, your core strength is top-tier. See where you stand.

No matter your fitness level, you can easily dial up or down your push-ups with the right modifications. Here are 12 push-up ...

Begin in a forearm plank position with elbows under shoulders, knees off the ground, pelvis tucked and glutes engaged. You can bring feet out a bit wider than hips-distance apart to create strong ...

“The plank can activate your postural muscles, shoulders, back of the neck, elbows, triceps, hips and quads,” Morrow said. “It is a pretty efficient exercise in terms of the muscle groups ...

(CNN) — Planks are widely considered by fitness experts to be a fantastic exercise to strengthen the muscles in your core and elsewhere, no matter your age or physical fitness level.

Planks may seem daunting but are great for strengthening muscles in your core and elsewhere. Modifications can make the exercise more accessible — or more difficult.

(CNN) — Planks are widely considered by fitness experts to be a fantastic exercise to strengthen the muscles in your core and elsewhere, no matter your age or physical fitness ...