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 ...

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?

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 ...

Activations don't always have an advantage over other types of warmups.

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

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 ...

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 ...