While aerobic exercise can help ease knee pain, it's important to properly stretch beforehand to avoid making pain worse. shapecharge/E+/Getty Images

If you’re experiencing joint pain in the knees, the solution might be to walk it off.

Aerobic exercise can reduce pain, improve movement and enhance quality of life for patients with knee osteoarthritis, according to a study published October 15 in the journal The BMJ .

Around 1 in 5 adults , or 54 million people, are affected by some type of arthritis in the United States. The most common form is osteoarthritis.

“Osteoarthritis is wear and tear of cartilage, or the covering at the end of bones, which leads to pain, stiffness and decreased joint function,” said Dr. Antonia F. Chen, chair and professor of orthopedic surgery at the Un

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