Add Yahoo as a preferred source to see more of our stories on Google. Building strong, muscular quads is best done with a combination of compound exercises—squats, lunges, leg presses—and isolation ...

The longest bones in your body are your femurs, which are located within your upper legs. Connected to your femurs are your quadriceps, which are behind practically every movement that you do. This is ...

Strong legs are the ultimate foundation for all fitness goals. They power your biggest lifts, drive your endurance, and most importantly, shield your knees from injury. Yet, many fitness routines ...

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?

Plus, how to scale the move for all levels ...

What is a Quadriceps Strain? The quadriceps, often shortened and referred to as the quads, are a group of muscles located on the front of the thigh. The quadriceps are actually four different muscles ...