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 ...

Leg strengthening exercises after 55, with certified CPT guidance to rebuild muscle daily without beating up your joints.

Try chair exercises to improve standing endurance after 65, a low-impact routine designed by CPT Tyler Read.

Most quad exercises don’t require special equipment and are relatively easy for beginners. Whether you’re new to exercise or you’re a professional athlete, your quads are an important muscle group to ...

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, ...

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?

Much like their name implies, the quadricep muscles were once thought to be a set of four muscles, with the name “quad” translating to “four or fourth” in Latin. However, it has since been discovered ...

Background: Many injury prevention and rehabilitation programs aim to train hamstring and quadriceps co-activation to constrain excessive anterior tibial translation and protect the anterior cruciate ...