Final answer:
During a lunge, the quadriceps and hamstrings work together to stabilize and move the leg.
Step-by-step explanation:
During a lunge, the quadriceps and hamstrings work together to stabilize and move the leg. The quadriceps, which are located in the anterior compartment of the thigh, extend the knee and provide stability. The hamstrings, located in the posterior compartment of the thigh, flex the knee and also assist in extending the hip. These two muscle groups work in a coordinated manner to allow for smooth and controlled movement during a lunge.