Normal Gait 5

Question 1

What is the ROM during mid stance at the ankle joint?

Answer 1

5° of dorsiflexion

Question 2

What is the torque demand during mid stance at the ankle joint?

Answer 2

Increasing dorsiflexion torque

Question 3

What is the muscle demand during mid stance at the ankle joint?

Answer 3

Soleus and gastroc contract eccentrically to control forward progression of tibia

Question 4

What is the functional significance during mid stance at the ankle joint?

Answer 4

Calf muscles stabilize knee

Ankle rocker action created

Body progresses forward

Question 5

What does the ankle rocker action provide?

Answer 5

Ankle becomes fulcrum for continued progression of limb over stationary foot

Question 6

What is the ROM during mid stance at the subtalar joint?

Answer 6

Eversion position remains unchanged from end of loading response

Question 7

What is the torque demand during mid stance at the subtalar joint?

Answer 7

Eversion torque diminishes

Question 8

What is the muscle action during mid stance at the subtalar joint?

Answer 8

Posterior Tibialis, Soleus, and peroneals all eccentrically active

Question 9

What is the functional significance during mid stance at the subtalar joint?

Answer 9

Control of eversion

Question 10

What is the ROM during mid stance at the knee joint?

Answer 10

5° flexed

Question 11

What is the torque demand during mid stance at the knee joint?

Answer 11

Extension torque

Question 12

What is the muscle demand during mid stance at the knee joint?

Answer 12

Quads stabilize knee until knee extension torque begins

Calf muscles restrain tibia

Question 13

What is the functional significance during mid stance at the knee joint?

Answer 13

Knee stability maintained by knee extension torque and calf muscle activity

Question 14

What is the ROM during mid stance at the hip joint?

Answer 14

Extension to neutral

Question 15

What is the torque demand during mid stance at the hip joint?

Answer 15

Change from flexion to extension torque

Adduction torque continues

Question 16

What is the muscle demand during mid stance at the hip joint?

Answer 16

Hip abductors active

Question 17

What is the functional significance during mid stance at the hip joint?

Answer 17

Stable hip joint achieved in Sagittal plane

Pelvis stabilized in frontal plane

Question 18

What happens to the pelvis in mid stance?

Answer 18

Rotates backwards in horizontal plane to neutral

Question 19

What is the ROM during terminal stance at the ankle joint?

Answer 19

10° of dorsiflexion

Question 20

What is the torque demand during terminal stance at the ankle joint?

Answer 20

Dorsiflexion torque peaks

Question 21

What is the muscle action during terminal stance at the ankle joint?

Answer 21

Calf muscle activity peaks

Question 22

What is the functional significance during terminal stance at the ankle joint?

Answer 22

Maximal forward progression of the tibia

Heel allowed to rise

Question 23

What is the ROM during terminal stance at the subtalar joint?

Answer 23

Progressive reduction of eversion to 2°

Question 24

What is the torque demand during terminal stance at the subtalar joint?

Answer 24

Inversion torque created as heel rises

Question 25

What is the muscle action during terminal stance at the subtalar joint?

Answer 25

Posterior Tibialis and soleus contract concentrically Peroneals isometrically active

Question 26

What is the functional significance during terminal stance at the subtalar joint?

Answer 26

Reduction in eversion increases stability of midtarsal joint

Question 27

What is the ROM during terminal stance at the MTP joint?

Answer 27

30° of extension

Question 28

What is the torque demand during terminal stance at the MTP joint?

Answer 28

Extension torque created

Question 29

What is the muscle action during terminal stance at the MTP joint?

Answer 29

Calf muscle activity peaks Posterior Tibialis and soleus contract concentrically

Question 30

What is the functional significance during terminal stance at the MTP joint?

Answer 30

Forefoot rocker action created Contributes to contralateral step length

Question 31

What does the forefoot rocker action provide?

Answer 31

Metatarsal heads serve to facilitate continued forward progression of tibia

Question 32

What is the ROM during terminal stance at the knee joint?

Answer 32

5° of flexion

Question 33

What is the torque demand during terminal stance at the knee joint?

Answer 33

Extension torque peaks and then diminishes

Question 34

What is the muscle action during terminal stance at the knee joint?

Answer 34

Calf muscles continue to stabilize knee by restraining tibia Biceps femoris may be active

Question 35

What is the functional significance during terminal stance at the knee joint?

Answer 35

Joint stability maintained Biceps femoris may act to prevent Hyperextension

Question 36

What is the ROM during terminal stance at the hip joint?

Answer 36

20° of extension

Question 37

What is the torque demand during terminal stance at the hip joint?

Answer 37

Hip extension torque Adduction torque diminishes

Question 38

What is the muscle action during terminal stance at the hip joint?

Answer 38

Anterior fibers of TFL activate while posterior fibers of TFL diminish

Question 39

What is the functional significance during terminal stance at the hip joint?

Answer 39

Body allowed to advance past foot to maximize step length while limb remains stable

Question 40

What happens to the pelvis during terminal stance?

Answer 40

Anterior tilt and 5° of backward rotation in horizontal plane