The quadriceps, or quads, are a group of four muscles on the front of the thigh. They are some of the largest and strongest muscles in the body. The quad muscles allow a person to stand, walk, run, ...
Gentle stretching and other low impact exercises can strengthen the muscles that support your knee joint. Start by stretching your heel, calf, quadriceps, and hamstrings, and work up to half squats, ...
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