This funny-looking move is more than social media fluff. The leg day staple can save your spine.

The leg extension, or knee extension, is a type of strength training exercise. It’s an excellent move for strengthening your quadriceps, which are in the front of your upper legs. Leg extensions are ...

Katrina Carter, DPT, FNS, is a licensed travel physical therapist. She specializes in orthopedics and has a passion for providing education on nutrition for healing and overall health and wellness.

If you are looking to grow your legs but feel burned out on the same old leg extension routine, there are several effective alternatives that can deliver serious quad growth. The leg extension machine ...