Final answer:
Injuries in the feet and legs common in repetitive impact sports include stress fractures, inversion and eversion ankle sprains, and runner's knee. Stress fractures can be prevented with cautious exercise increases, cross-training, and proper footwear. Ankle sprains and runner's knee are attributed to overuse and excessive stress on the joints.
Step-by-step explanation:
Repetitive impact sports injuries commonly occur in the feet and legs. Stress fractures are a typical injury resulting from repetitive striking of the foot against the ground, as seen in running, basketball, and gymnastics. To prevent stress fractures, it's recommended to gradually increase activity levels, engage in cross-training, rest when in pain, and use supportive footwear.
Inversion ankle sprains are another common injury, where the anterior talofibular ligament is often damaged due to excessive inversion of the ankle. In severe cases, the forceful lateral movement can fracture the distal fibula. Conversely, eversion sprains may lead to a Pott's fracture due to stretching or shearing of the deltoid ligament.
Runner's knee, also known as patellofemoral syndrome, typically affects runners and athletes who frequently bend their knees. It manifests as a dull ache around the front of the knee and can be exacerbated by activities such as walking, running, squatting, or sitting with bent knees for long periods.