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

Build a lean, strong core with five bodyweight routines for power, balance, and endurance. No equipment. In 10 to 15 minutes.

Both core exercises can strengthen and tone your abs, improving stability and balance while building a visible six-pack. But ...

At 56, Jennifer Aniston stays in shape with weightlifting and bursts of cardio — and you won't beat her at a plank, her ...

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

If you’ve ever held a plank, paused at the bottom of a squat or pressed your palms together in front of your chest, you’ve done an isometric exercise. Ta-da! These holds might look simple — after all, ...

Push-ups, crunches, and sit-ups are staple ab workouts, but cranking out endless repetitions can get boring fast. Fortunately, you can shake up your mid-body routine with this 8-move dumbbell workout ...

Core exercises are easy to fall prey to boredom. After all, how long can you keep doing the same crunches and planks before you hit a plateau? These five core exercises to keep your mind engaged and h ...

Boost core strength after 50 with this 6-minute standing routine that works your abs, obliques, and back, no planks or floor work.