If you can't get into your air-conditioned gym and don't fancy an outdoor workout in these temperatures, then this quick ...

Fitness specialists say some of the best quad-building exercises don’t require a single squat.

Squats aren’t the only way to build strong quads—moves like step-ups, lunges, and leg presses target them just as well. These exercises work the quads in different ways, from eccentric engagement on ...

Add Yahoo as a preferred source to see more of our stories on Google. Strengthen and tone your thighs with these at home quad workouts and exercises. Quad exercises, when done correctly, are one of ...

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 ...

Squats work your glutes and hamstrings, as well as your quads. Many people turn to squats to bulk up their quads, but the exercise—which involves bending your knees and pushing your hips back as if ...

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?

Quad-dominant running can cause injuries and problems for runners. Here's how to determine if you’re a quad-dominant runner, ...