IF YOU ARE focused on building a strong, functional core, you need to know what muscles you're working so hard to sculpt. There are the six-pack muscles (the rectus abdominis) trained with spinal ...

For on-demand core workouts — plus fitness challenges, meal plans and inspiration — download the Start TODAY app! When we think of core exercises, standard moves like situps and crunches are often a ...

We’ve said it before and we’ll say it again — when it comes to building a rock-solid core, endless sit-ups and planks alone won’t do it. Not only does switching things up help you beat boredom, but it ...

To get chiseled abs, you have to target your abdominal muscles at the front and fire up your obliques on the sides of your core. Oblique crunches are a simple yet effective exercise to add to your ...