Alexandria, a sprinter, experienced thigh pain during the start of her last race. Within 48 hours of the race, she noticed extensive bruising on the back of her thigh extending into the back of the knee and has difficulty rising from a seated position and flexing her knee. Bending at the waist generates more pain. Which muscle is likely injured?

Question

Quizplus · Accepted Answer

The symptoms described, including extensive bruising on the back of the thigh, difficulty rising from a seated position, and pain when flexing the knee or bending at the waist, suggest a hamstring injury. The biceps femoris is a part of the hamstring group located at the back of the thigh, making it the most likely muscle to be injured given the symptoms.

Alexandria, a Sprinter, Experienced Thigh Pain During the Start of Her