Noninvasive testing of the carotid system.

: The increase in strenuous sports participation among adult Americans has led to a high incidence of overuse syndromes. Common running-related problems include iliotibial tract tendinitis, chondromalacia patellae, "shinsplints," stress fractures and various heel and foot syndromes. Most causes of overuse syndromes can be traced to training errors, anatomic factors, poor shoes and uneven running surfaces. These syndromes generally respond to modification of the exercise program, anti-inflammatory drugs and orthotic correction of lower extremity malalignment.