The vastus medialis is one of the four quadriceps muscles, located on the front of your thigh, above your kneecap. It’s the innermost one. When you extend your leg fully, you can feel and sometimes ...

The quadriceps, or quads, are a group of four muscles on the front of the thigh. They are some of the largest and strongest muscles in the body. The quad muscles allow a person to stand, walk, run, ...

Want to add leg-day exercises to your routine that target muscle groups effectively? Get inspired by the actor's leg-day workouts.

Whether you realize it or not, your quads work hard all day, every day. So, your quads deserve some extra attention to keep them functioning at peak performance, and no leg day is complete without ...

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?

The best quad exercises are those that strengthen your upper leg muscles and create a steady foundation for your whole body. Quads are an extremely important group of muscles that help you raise your ...