D3 - The athletic hip

Question 1

What is the primary role of the coxofemoral joint?

Answer 1

The primary role of the coxofemoral joint is to support the weight of the head

Question 2

Which bones comprise the pelvis?

Answer 2

The pelvis comprises three bones: the ilium

Question 3

What structure facilitates the interaction between the head of the femur and pelvis?

Answer 3

The cup-like structure known as the acetabulum facilitates the interaction between the head of the femur and pelvis.

Question 4

What contributes to the stability of the hip joint and increases the depth of the acetabulum?

Answer 4

The acetabular labrum

Question 5

During weight-bearing activities

Answer 5

which part of the hip joint remains relatively fixed?

Question 6

Why is the coxofemoral joint considered stable but less mobile?

Answer 6

The coxofemoral joint is considered stable but less mobile compared to other ball-and-socket joints like the shoulder.

Question 7

What are the primary actions at the hip joint?

Answer 7

The primary actions at the hip joint are flexion

Question 8

What limits the hip joint to approximately 90 degrees of flexion when the knee is fully extended?

Answer 8

Hamstring tension limits the hip joint to approximately 90 degrees of flexion when the knee is fully extended.

Question 9

What is the significance of anterior tilt and posterior tilt of the pelvis?

Answer 9

Anterior tilt produces flexion of the hip joint

Question 10

What does lateral pelvic tilt indicate during single-leg-stance activities?

Answer 10

Significant lateral pelvic tilt during single-leg-stance activities is an indicator of lateral hip weakness.

Question 11

Name the primary muscles responsible for flexion of the coxofemoral joint.

Answer 11

The primary muscles responsible for flexion of the coxofemoral joint are the iliopsoas

Question 12

What can hip-flexor-dominant movement patterns lead to?

Answer 12

Hip-flexor-dominant movement patterns can lead to issues such as knee

Question 13

Which muscle is the only 2-joint muscle in the quadriceps muscle group?

Answer 13

The rectus femoris is the only 2-joint muscle in the quadriceps muscle group

Question 14

What is a consequence of tightness in the hip-flexor muscle group?

Answer 14

Tightness in the hip-flexor muscle group can lead to multiple movement faults and may limit hamstring flexibility.

Question 15

Which muscles are the primary extensors of the hip joint?

Answer 15

The gluteus maximus and the hamstring muscle group are the primary extensors of the hip joint.

Question 16

What role does the gluteus maximus play in hip movement?

Answer 16

The gluteus maximus also plays a role in lateral (external) rotation of the femur.

Question 17

What muscles are the prime movers for hip abduction?

Answer 17

The gluteus medius and the gluteus minimus are the prime movers for hip abduction.

Question 18

What is the role of the muscles of hip abduction in a closed-chain scenario?

Answer 18

In a closed-chain scenario

Question 19

What is theorized about the primary role of hip adductors during gait?

Answer 19

It is theorized that the hip adductors do not have a primary mobility role but are more or less reflexive during gait and have a role in hip internal rotation.

Question 20

Name six muscles that produce external rotation of the hip.

Answer 20

Six muscles that produce external rotation of the hip are the obturator internus and externus