"Our results suggest that strong quadriceps muscles have an overall beneficial effect on knee osteoarthritis," the researchers said.
MY COMMENT: This study only found protection from cartilage loss in the lateral compartment of the patello-femoral joint. Researchers think a stronger vastus medialis (pulls the knee inward) may reduce cartilage loss around the joint. Too early to tell but not a bad idea for any runner to strengthen those quads.
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