The certified fitness instructor and SI Swimsuit model shares an efficient workout that’s sure to make you feel the burn.

How to do it: Stand with your feet hip-width apart. Slowly rise onto your toes and lower back down with control. Use a wall ...

To get your calf muscles in shape, here are some exercises you can try. Calf raises are the classic calf-strengthening exercise. They use your body weight to strengthen and tone the gastrocnemius ...

Join four-time SI Swimsuit model Katie Austin as she demonstrates a powerful and effective 18-minute workout that targets ...

Even if you decide to go with just your leg day, there can be a nice benefit to ending with a little sweat: A quick ...

Kick things up a notch with this advanced core and legs workout, that takes half an hour, created by a certified personal ...

Transform your legs and glutes with this 20-minute bodyweight workout. Achieve strength, tone, and definition in no time.

Nordic curls are a killer exercise for the hamstrings. You secure your feet under a sturdy bar or have a partner hold them, ...