D3 - The athletic hip Flashcards
What is the primary role of the coxofemoral joint?
The primary role of the coxofemoral joint is to support the weight of the head
Which bones comprise the pelvis?
The pelvis comprises three bones: the ilium
What structure facilitates the interaction between the head of the femur and pelvis?
The cup-like structure known as the acetabulum facilitates the interaction between the head of the femur and pelvis.
What contributes to the stability of the hip joint and increases the depth of the acetabulum?
The acetabular labrum
During weight-bearing activities
which part of the hip joint remains relatively fixed?
Why is the coxofemoral joint considered stable but less mobile?
The coxofemoral joint is considered stable but less mobile compared to other ball-and-socket joints like the shoulder.
What are the primary actions at the hip joint?
The primary actions at the hip joint are flexion
What limits the hip joint to approximately 90 degrees of flexion when the knee is fully extended?
Hamstring tension limits the hip joint to approximately 90 degrees of flexion when the knee is fully extended.
What is the significance of anterior tilt and posterior tilt of the pelvis?
Anterior tilt produces flexion of the hip joint
What does lateral pelvic tilt indicate during single-leg-stance activities?
Significant lateral pelvic tilt during single-leg-stance activities is an indicator of lateral hip weakness.
Name the primary muscles responsible for flexion of the coxofemoral joint.
The primary muscles responsible for flexion of the coxofemoral joint are the iliopsoas
What can hip-flexor-dominant movement patterns lead to?
Hip-flexor-dominant movement patterns can lead to issues such as knee
Which muscle is the only 2-joint muscle in the quadriceps muscle group?
The rectus femoris is the only 2-joint muscle in the quadriceps muscle group
What is a consequence of tightness in the hip-flexor muscle group?
Tightness in the hip-flexor muscle group can lead to multiple movement faults and may limit hamstring flexibility.
Which muscles are the primary extensors of the hip joint?
The gluteus maximus and the hamstring muscle group are the primary extensors of the hip joint.
What role does the gluteus maximus play in hip movement?
The gluteus maximus also plays a role in lateral (external) rotation of the femur.
What muscles are the prime movers for hip abduction?
The gluteus medius and the gluteus minimus are the prime movers for hip abduction.
What is the role of the muscles of hip abduction in a closed-chain scenario?
In a closed-chain scenario
What is theorized about the primary role of hip adductors during gait?
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.
Name six muscles that produce external rotation of the hip.
Six muscles that produce external rotation of the hip are the obturator internus and externus
