While the knee joint appears to be a simple machine from the outside, it is made up of intricate muscles, tendons, bone, ligaments, cartilage, and fluid. All of these components are susceptible to injury, whether through routine wear and tear or a single impact. Knee injuries are one of the most common injuries for athletes and active people. Unlike hip damage, which tends to become more common as we get older, knee injuries don't discriminate based on age. Torn ACLs and other knee injuries are common for teen athletes.
Tendons are responsible for knee mobility, as they connect the knee bones to leg muscles. The most common muscle-tendon injuries occur due to hyperextension of the hamstring muscles, one of the three posterior thigh muscles in between the hip and the knee. Luckily, these injuries are relatively mild and don't need much medical intervention. Treatment typically includes ice packs, elevating the affected leg, and rest. A doctor may suggest special exercises and physical therapy for more severe cases.
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