KIN 480: Lower Extremity Content
1. Females have pelvic girdles that are , , and than
males: wider, thinner, lighter
female pelvis flare more lateraluy in the front and the sacrum is wider in the back creating a broader pelvic cavity than
males
2. pelvic movement: •Concomitant movements of the pelvic girdle and the thigh at the hip joint
3. what kind of joint is acetabulofemoral: weight bearing joint ball and socket
4. acetabulofemoral joint versus glenohumeral: * acetabulum much deeper than glenoid but both have labrum
* has more bony support then shoulder
* less range of motion but more stable
5. anterior and posterior tilt plane: sagittal
6. anterior tilt occurs during: hip hyperextension
it is forward tiliting and downward movement of pelvis
7. posterior tilt occurs during: maximal hip flexion
8. lateral tilt plane: frontal
9. lateral tilt occurs: during walking allows your opposite leg to swing during gait or when weight throug
on one legs h
direction determined by the iliac spine that moves down
tilts of the pelvis about an AP axis to right or left
10.pelvic rotation plane and occurs: transverse rotation along
longitudinal axis
direction determined by iliac spine that moves posterior occurs during walking
11. during right swing the pelvis has t
and -
: left lateral tilt left
pelvic rotation
left swing is the opposite
12.angle of inclination: The angle between the shaft and the neck of the femur in the frontal plane; 90 to 135 degrees.
13.which side of the femoral neck has higher forces f: inferior is compresed durign bending
superior has tension
, KIN 480: Lower Extremity Content
inferior is more likely to break and has higher forces
14.A HIGHER ANGLE of inclination: less bending, less torque because moment arm is smaller
closer to 135*
a smaller angle has a higher moment arm, more torque, closer to 90*
15.coxa vara: less than 125 angle of inclination
1) shortens limbs
2) increase moment arm and effectiveness of abductors
3) reduces load on femoral head (less muscle force)
4) increases load on femoral neck (increased bending)
16.coxa valgus: more then 125
1) longer limbs
2) decrease moment arm and effectiveness of abductors
3) increase load on head increase msucle force
4) decrease load on neck less bending
17.angle of anteversion: angle of the femoral neck in the transverse plane normally roated anterioraly 12-14
degrees
18.excessive anteversion: -beyond 14 degrees causes the head of the femur to become uncovered
-in order to keep the head of the femur within the acetabulum, a person must internally rotate the femur
- this might be compensated by rotating the hip medially
19.retroversion: if the angle of anteversion reversed so that it moves posteriorly
this condition may cause the person to compensate by externally rotating the femur
20.approximately of the head of femur articulates with the acetabulum-
: 70%
21.iliofemoral ligament: resists extension and internal rotation and nal rotation some
exeter-
22.pubofemoral ligament: resists abduction and some external rotation
1. Females have pelvic girdles that are , , and than
males: wider, thinner, lighter
female pelvis flare more lateraluy in the front and the sacrum is wider in the back creating a broader pelvic cavity than
males
2. pelvic movement: •Concomitant movements of the pelvic girdle and the thigh at the hip joint
3. what kind of joint is acetabulofemoral: weight bearing joint ball and socket
4. acetabulofemoral joint versus glenohumeral: * acetabulum much deeper than glenoid but both have labrum
* has more bony support then shoulder
* less range of motion but more stable
5. anterior and posterior tilt plane: sagittal
6. anterior tilt occurs during: hip hyperextension
it is forward tiliting and downward movement of pelvis
7. posterior tilt occurs during: maximal hip flexion
8. lateral tilt plane: frontal
9. lateral tilt occurs: during walking allows your opposite leg to swing during gait or when weight throug
on one legs h
direction determined by the iliac spine that moves down
tilts of the pelvis about an AP axis to right or left
10.pelvic rotation plane and occurs: transverse rotation along
longitudinal axis
direction determined by iliac spine that moves posterior occurs during walking
11. during right swing the pelvis has t
and -
: left lateral tilt left
pelvic rotation
left swing is the opposite
12.angle of inclination: The angle between the shaft and the neck of the femur in the frontal plane; 90 to 135 degrees.
13.which side of the femoral neck has higher forces f: inferior is compresed durign bending
superior has tension
, KIN 480: Lower Extremity Content
inferior is more likely to break and has higher forces
14.A HIGHER ANGLE of inclination: less bending, less torque because moment arm is smaller
closer to 135*
a smaller angle has a higher moment arm, more torque, closer to 90*
15.coxa vara: less than 125 angle of inclination
1) shortens limbs
2) increase moment arm and effectiveness of abductors
3) reduces load on femoral head (less muscle force)
4) increases load on femoral neck (increased bending)
16.coxa valgus: more then 125
1) longer limbs
2) decrease moment arm and effectiveness of abductors
3) increase load on head increase msucle force
4) decrease load on neck less bending
17.angle of anteversion: angle of the femoral neck in the transverse plane normally roated anterioraly 12-14
degrees
18.excessive anteversion: -beyond 14 degrees causes the head of the femur to become uncovered
-in order to keep the head of the femur within the acetabulum, a person must internally rotate the femur
- this might be compensated by rotating the hip medially
19.retroversion: if the angle of anteversion reversed so that it moves posteriorly
this condition may cause the person to compensate by externally rotating the femur
20.approximately of the head of femur articulates with the acetabulum-
: 70%
21.iliofemoral ligament: resists extension and internal rotation and nal rotation some
exeter-
22.pubofemoral ligament: resists abduction and some external rotation
