One of the most well-known exercises is the squat. The exercise comes in countless variations — think: back squat, front squat, sumo squat — and can be performed with a variety of workout equipment, ...

Quadricep exercises target the quadriceps - a group of muscles sitting on the front of your thighs. If you've done one too many squats in the gym or had to climb more stairs than you'd like, you'll be ...

In addition to deadlifts and chest presses, squats are considered one of the “big three” lifts since they engage multiple muscle groups and joints. But aside from your traditional bodyweight squat, ...

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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Add Yahoo as a preferred source to see more of our stories on Google. If you belong to a well-apportioned gym, you probably have more than just the squat rack to build up your legs with heavy weights.