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?

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The best quad exercises are those that strengthen your upper leg muscles and create a steady foundation for your whole body. From exercises targeting your inner or outer quads, to kettlebell or ...

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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 ...

BOSTON - Researchers have found that there are certain exercises people with knee arthritis can do to reduce their need for joint replacement. Experts said to focus on the quadriceps muscles, the ...