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

Both planks and push-ups are hall-of-fame workout moves. They can be done nearly anywhere because you don't need any equipment, and you don't need any more space than the amount you take up lengthwise ...

When you were a kid, you probably did sit-ups at school for an ab workout. But is the sit-up the best ab exercise? That’s actually a simple question. No way! There are far better ab exercises than a ...

Dr. Jennifer Ashton on why these exercises should be in your daily routine. Make self-care a priority! Join "GMA" and Dr. Jennifer Ashton with a new self-care challenge every month. Dr. Jennifer ...

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 ...

Changes to the exercises used for the military fitness testing are here to stay. It will take some time and practice to get used to replacing sit-ups and crunches with more static exercises like plank ...

Planks are pretty much the gold standard when it comes to core workouts — especially since most experts agree that we should avoid sit-ups like the plague. While plank variations can get fancy — with ...

Which exercise is better for the core? Planks have a significant advantage over sit-ups in terms of effectiveness and posture. Photo: Getty Images, Collage: FITBOO When it comes to choosing the right ...

Hold a strict forearm plank for 90 to 120 seconds to prove elite core strength after 50. Get clear form cues, progressions, ...