Strong legs are the foundation of our body that support most movements, and the quadriceps, commonly known as the quads, play ...

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?

Long-term lifters understand the real importance of leg day (despite how gruelling it may be). Stronger quads help to stabilise our body, power everyday movements, like walking, running and hiking, ...

Knee-strengthening exercises include wall-sits, step-ups, and Romanian deadlifts. They help improve overall knee stability and prevent injuries.

Rowing machine muscles worked include the quads, glutes, triceps, and more, making it a great whole-body workout. This heart-pumping, high-intensity exercise activates many of the muscles that are ...