Lower Extremity AKR

Question 1

What are the three body segments of the lower extremity from proximal to distal?

Answer 1

Thigh, lower leg, foot

Question 2

How many tarsals, metatarsals, and phalanges are there in a foot?

Answer 2

7 tarsals, 5 metatarsals, 14 phalanges

Question 3

What are the 6 movements of the pelvis?

Answer 3

Anterior/posterior PR
Right/left lateral PR
R/L Transverse PR

Question 4

For left lateral PR which side is lowered?

Answer 4

Left

Question 5

What are the 6 movements of the hip joint?

Answer 5

Flexion/extension/hyperextension
ABduction/ADduction
Internal/external rotation

Question 6

What are the 4 movements of the knee joint?

Answer 6

Flexion/extension
Internal/external rotation

Question 7

What are the 2 movements of the ankle joint?

Answer 7

Plantar flexion/dorsi flexion

Question 8

What allows for knee rotation?

Answer 8

Knee flexion since the medial/lateral collateral ligaments go slack
Allows for 50 degrees ROM

Question 9

Knee Vargus (genu vargum)

Answer 9

Bow-legs
Knees align out

Question 10

Knee Valgus (genu valgum)

Answer 10

Knock knees
Knees align in

Question 11

Posterior pelvic motion

Answer 11

Hips push forward into spine

Question 12

Anterior pelvic motion

Answer 12

Hips push back (think like a girl breaking her back to have a butt)

Question 13

If hip flexion is the primary motion during bilateral unision, what is the secondary?

Answer 13

Posterior rotation

Question 14

If hip extension is the primary motion during bilateral unison, what is the secondary?

Answer 14

Anterior rotation

Question 15

Secondary posterior/anterior rotation are examples of bilateral ______.

Answer 15

Unison

Question 16

If hip flexion is the primary motion during bilateral opposition, what is the secondary?

Answer 16

Transverse pelvic rotation

Question 17

If hip extension is the primary motion during bilateral opposition, what is the secondary?

Answer 17

Transverse pelvic rotation

Question 18

Secondary transverse pelvic rotation is an example of bilateral ________.

Answer 18

Opposition

Question 19

If hip abduction is the primary motion during unilateral motion, what is the secondary?

Answer 19

Lateral pelvic rotation

Question 20

Secondary lateral pelvic rotation is an example of ________ motion.

Answer 20

Unilateral

Question 21

A vertical jump is what type of motion?

Answer 21

Ballistic

Question 22

Is the down phase of a vertical jump uniphasic, biphasic, or triphasic?

Answer 22

Biphasic

Question 23

Is the up phase of a vertical jump uniphasic, biphasic, or triphasic?

Answer 23

Triphasic

Question 24

What is the down phase of a vertical jump also called?

Answer 24

Countermovement

Question 25

What is the up phase of a vertical jump also called?

Answer 25

Propulsion

Question 26

Since ballistic movement causes a change in the agonists of the countermovement... what are they now?

Answer 26

Triple flexors Antagonists now lengthen since this is concentric movement

Question 27

What phase does not happen in a squat jump that does in a vertical?

Answer 27

Countermovement phase

Question 28

Describe the lower extremity joints positions in anatomical position (Pelvis, hip, knee, ankle, foot)

Answer 28

See notes key

Question 29

Practice labeling the muscles of the lower extremity

Answer 29

See AKR key