Knee joint of a patient showing (A) severe cartilage defects and (B) intact knee joint. CHICAGO – Stronger quadriceps muscles, relative to the hamstrings, may lower the risk of total knee replacement, ...

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"We're learning things from Lindsey," said the orthopedic surgeon who helped give Vonn a second career. Everyone is.

Maybe your knee twinges every time you sink into a squat. Or the joint feels off when you’re doing step-ups. Maybe you just can’t seem to lunge without experiencing some knee discomfort. Simply put, ...

BOSTON - Researchers have found that there are certain exercises people with knee arthritis can do to reduce their need for joint replacement. Experts said to focus on the quadriceps muscles, the ...

It's commonly known as runner's knee, but you don't have to run to feel the pain of patellofemoral syndrome (PFPS). This condition occurs often in young athletes and female athletes especially.

It was devastating rupturing my ACL (the ligament in the knee connecting the thigh bone to the shin bone) during a soccer ...

Repeated exercise, or wasting, can change the way key genes work.

A newly developed bionic knee could help people with above-the-knee amputations walk and climb with greater ease than they could with a traditional prosthesis. The new prosthesis, described July 10 in ...

Daily exercises to build muscle after 45, with expert coaching cues, to improve strength, balance, and muscle retention.