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

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Bored of planks and crunches? Why not try mixing things up with a killer ab ...

Strengthening your lower abs might not be at the top of your priorities when building a stronger core. Maybe you’re focused on how core strength can improve other exercise areas, like weightlifting or ...

Have you noticed planking seems to make time slow down? Besides being a time machine, planking has many benefits that go far beyond just being a replacement exercise for sit-ups, crunches and leg ...

George Hood completed around 1,500 sit-ups per day to train for the feat. An Illinois man who spent the past several months training seven hours a day, including 1,500 sit-ups daily, has broken the ...

There are two kinds of people in this world: People who want to work their core and people who consider core exercises their worst nightmare. But regardless of which camp you fall into, if you are ...

Dead bugs are one of the best ab workouts, according to personal trainer Brittany Noelle. Noelle said many people perform ab exercises incorrectly, which can cause injury. She said sit-ups are one of ...

When I heard the record for a woman holding an abdominal plank was measured in hours and not minutes (a whopping 4 hours 19 minutes and 55 seconds), I honestly couldn't believe it. I get the full-body ...