As Americans live longer and lead more active lifestyles, knee pain has become increasingly common—and so too has the need ...

A bionic knee developed by Massachusetts Institute of Technology researchers is giving amputees a new world of motion.

A new bionic knee allows amputees to walk faster, climb stairs more easily, and adroitly avoid obstacles, researchers ...

Freyja Kendrick struggled to lose weight and battled knee pain. Low-impact pool workouts and eating 30 grams of protein per ...