The somersault squat is a funny-looking move that builds the quad muscles. Here's what to know about the leg day staple, and how to do the exercise.

Our knees are crucial joints, bearing the brunt of our daily activities. But wear and tear, injuries, and even inactivity can take their toll, leading to pain and discomfort. Thankfully, strengthening ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Ready for leg day?

For someone dealing with unresolved or lingering knee pain, a leg day workout packed with high-impact moves, squats, and lunges can be, well, a little scary. That's because, according to Dr. Leada ...