Building strong, muscular quads is best done with a combination of compound exercises—squats, lunges, leg presses—and isolation work, such as leg extensions. Tack on some powerful plyometric moves, ...

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 ...

You've heard it a million times before, but still: never skip leg day. Longterm lifters know that leg exercises are what really separate the men from the boys, and if you're looking to build full body ...

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 ...

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

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. “Activation” exercises ...

EDITOR’S NOTE: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist, a mind-body coach in professional sports, and the author of “Practical Solutions for ...

Sometimes, you may find yourself doing an exercise and not actually feeling the muscles it's supposed to be working. Hiring a personal trainer can help, along with slowing down your reps and going ...