It's not planks or sit-ups — the starburst plank is torture on your abs, obliques and shoulders (so I tried it, and here's my verdict)

The starburst side plank variation strengthens the shoulders, abs and obliques. Here's why we love it at Tom's Guide.
Woman & Home on MSN

Move over, Pilates - an expert trainer recommends plank rows to build a stronger core and arms

"Instead of lifting a dumbbell, focus on drawing your elbow up towards your ribs and squeezing your shoulder blade in.

This is how long you should be able to hold a plank for, according to your age

‘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, ...

The Exercise Women Over 50 Should Add to Their Routine, According to a Doctor

Exercising is key to longevity; it’s been associated with everything from improved cardiovascular health to increased ...

If You Can Hold This Position for 60 Seconds After 50, Your Strength Is Exceptional

Test your strength after 50 with a 60-second forearm plank that reveals exceptional core and full-body stability.