Question

What is the function of hip extensors in a raised leg?

1) To flex the hip joint
2) To extend the hip joint
3) To abduct the hip joint
4) To adduct the hip joint

Answer 1

The function of hip extensors in a raised leg is to extend the hip joint, stabilizing the leg during activities like walking and running. Therefore, the correct answer is 2.

Step-by-step explanation:

The function of the hip extensors in a raised leg is to extend the hip joint (option 2). The powerful muscles such as the gluteus maximus, which are part of the hip extensors, originate from the pelvic girdle and insert into the femur. These muscles are responsible for extending the thigh at the hip. They work opposite the hip flexors, like the iliopsoas group, which raise the knee at the hip. Therefore, when the leg is lifted, the hip extensors are engaged to extend the hip and aid in stabilizing the movement, especially if the leg is moving to a position behind the body. This is crucial for activities such as walking, running, and climbing, where the extension of the hip joint plays a significant role.