Whether you're switching up your typical strength training routine or rehabbing after injury, introducing instability into your workouts will have you shaking and aching like never before. There are a ...

Medicine balls are small, weighted exercise equipment great for strengthening your abs and core. Though you can use just one weight, using multiple sizes can make the workouts more versatile. It's ...

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There are so many effective ways to work your core at the gym and at the home. You could grab a kettlebell and do a full-body routine with sneaky abs engagement, do bodyweight abs moves like plank ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Our core is the cradle of our body’s movement—it’s simply impossible to ride at our best and happiest ...