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

Get age-specific plank duration goals and understand how different plank variations target specific muscle groups, as "Fox & Friends" hosts face off in a planking challenge.

Now, to do a plank, start lying facedown and place elbows directly under shoulders. Place feet hip-width apart. Make sure your back is flat and your head and neck are in a neutral position.

Reverse planks target the back of your body (also known as your posterior chain), working muscles like your hamstrings, glutes, lats and deltoids. Your core muscles like the rectus abdominis will have ...

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.

‘In your 20s and 30s, being able to plank for 45-60 seconds is a solid marker of good core endurance,’ says PT Joseph Webb, ...

One of the ways to maintain a good posture is exercising. Doing the right exercises can help to prevent a poor posture, which can eventually reduce the risks of back pain, neck pain or other problems.

According to Craig Voll, clinical assistant professor in the Purdue Department of Health and Kinesiology, bad posture while using mobile devices can catch up with users over time, which could create ...