Drop it like it's Hot
What osteokinematic motion occurs during the song drop it like it's hot?
What is a squat.
What does asis stand for?
Anterior superior illiac spine
Name the osteokinematic motions of the hip joint
Flexion/extension, abduction/adduction, external rotation/internal rotation
Name an open chain movement of the hip joint
What is (hip flexion, extension, abduction, adduction)
What is the close packed position of the hip?
What is full extension and medial rotation
Name the concentric range of motion at the hip during a squat
Hip extension
Palpate the ischial tuberosity
Demo on skeleton
Name a muscle that abducts the hip?
What is the glutes!
Think Glute med/TFL
Name a close chain movement of the hip joint
What is Squats, step ups, running, etc...
What is the loose packed position of the hip
What is 30 degrees flexion, 30 degrees abduction and slight lateral rotation
What muscle(s) are active during the concentric motion of a squat?
Primary = glutes and quads
What muscles attach to the asis?
Sartorius and TFL
What nerve innervates most of the adductor muscle group and which muscles does it innervate?
What is the
1. Obterrator nerve
2. adductor longus, brevis, magnus (also innervated by sciatic nerve), gracillis
Pectineus is innervated by femoral nerve
What is the concave/convex rule in an open chain movement?
What is Convex on Concave (roll and slide opposite)
femur moving relative to the acetabulum
Name and describe 1 hip joint pathology.
What is
1. Hip OA
2. Fracture
3. ITB syndrome
4. Bursitis
5. Hamstring strain
6. Hip dislocation
7. Labral tear
What is a common aberrant movement pattern when squatting?
Knee valgus
What bony landmark does the biceps femoris originate at and insert at?
What is the ischial tuberosity and lateral head of the fibula.
Name two joint muscles at the hip and their actions.
What is...
Rectus femoris: hip flexion, knee extension
Semimembranosus, semi tendinosis, biceps femoris: hip extension, and knee flexion
Sartorius: hip flexion, abduction, external rotation and knee flexion
What is the concave/convex rule in an close chain movement?
What is concave on convex.
The concave acetabulum moves relative to the femur
Roll and slide same
Name a similarity(ies) of the hip joint to the shoulder joint
What is...
1. Ball and socket joint (triaxial)
2. Same osteokinematic motion
3. Similar structures labrum/ligaments to provide stability
You observe your client at the gym in knee valgus when squatting. What exercise prescription would you give them to help with their dysfunctional movement pattern?
Hip strengthening exercises (glutes/hip abductor strengthening)
Describe what happens when the pelvic bones rotate anterior vs. posterioly (force couple)
What is.....
1. Anterior tilt- posteriorly Back extensors (erector spinae) are active pulling superiorly, anteriorly hip flexors pull inferiorly
2. Posterior tilt- hip extensors (hamstrings) are active posteriorly pulling inferiorly, anteriorly trunk flexors (abdominals) pull superiorly
1. Describe the muscle control required of lateral tilt when standing on 1 leg.
2. What is this called if dysfunctional?
what is
1. Hip abductors on weight bearing side, counteract the adduction that is occurring at the hip
2. Trunk lateral flexors (erector spinae and quadratus lumborum) on non weight bearing side (reverse muscle action - laterally bend to left the pelvis)
If my right hip is injured and I need to use an assistive device. In which hand should I place my assistive device and why?
What is the Left hand, greater moment arm, more efficient placement of cane for proper movement/less compensatory gait pattern.
Name a difference(s) of the hip joint compared to the shoulder joint
What is...
1.more stable joint
2. Much deeper socket than the shoulder
3. Stabilized by bone/ligament