Biomechanics of the Hip Flashcards
Biomechanics
Compensatory optimization of muscular pull at the hip causes those with femoral anteversion to toe (in or out) during gait.
Hip
In
Biomechanics
Which tissues are taught during hip flexion with the knee extended?
Hip
Hamstrings
Biomechanics
Which tissues are taught during hip flexion with the knee flexed?
Hip
- Gluteals
- Capsule
Biomechanics
Which tissues are taught with the hip extended and the knee extended?
Hip
- Iliofemoral Ligament
- Pubofemoral Ligament
- Ischiofemoral Ligament
- Iliopsoas
Biomechanics
Which tissues are taught with the hip extended and the knee flexed?
Hip
- Rectus Femoris
Biomechanics
What is the ligamentous close-packed position of the hip?
Hip
Extension, Internal Rotation, and Abduction
Biomechanics
What is the bony close-packed position of the hip?
Hip
Flexion, External Rotation, and Abduction
Biomechanics
What type of arthrokinematic movement occurs at the hip joint during flexion and extension?
Hip
Spin
Biomechanics
What type of arthrokinematic movement occurs at the hip joint during Abduction?
Hip
Superior Roll
Inferior Glide
Biomechanics
What type of arthrokinematic movement occurs at the hip joint during Internal Rotation?
Hip
Anterior Roll
Posterior Glide
Biomechanics
What type of arthrokinematic movement occurs at the hip joint during External Rotation?
Hip
Posterior Roll
Anterior Glide
Biomechanics
Compare and contrast angle of inclination vs angle of torsion.
Hip
Angle of Inclination: an angle in the frontal plane between the femoral neck and medial side of femoral shaft
Angle of Torsion: relative rotation between the bone’s shaft and neck (15 degrees of anteversion is optimal)
Biomechanics
What is the difference between the trendelenburg sign and the compensated trendelenburg sign.
Hip
Trendelenburg: Insufficient hip abduction is unable to control the inferior movement of the center of mass during stance. This results in rapid and poorly controlled hip adduction and contralateral pelvic drop.
Compensated Trendelenburg: An anticipatory lateral shift of the center of mass towards the side of insufficient hip abduction lessens the demand on this weakned area.
