gait lecture

Question 1

forces applied to the foot by the ground during stance face

Answer 1

GRF

Question 2

point where all resultant floor-foot forces act-travels along a path during stance phase; characteristic pattern

Answer 2

COP

Question 3

rotation around an axis

Answer 3

moment

Question 4

external moment

Answer 4

gravity, inertia, GRF, in relation to joint center

Question 5

internal moment

Answer 5

direction opposite the external moment
muscles, lig, joint

Question 6

power generation

Answer 6

accomplished with muscle shortening (concentric generation) -PUSH

Question 7

power absorption

Answer 7

accomplished with muscle lengthening (eccentric contraction)- CUSH

Question 8

explain COP

Answer 8

1. posterior lateral heel at IC
   2.through lateral midfoot during LR
   3.medially across ball of foot as heel lifts in terminal stance
   4.1st and 2nd toes during pre-swing

Question 9

initial contact
Hip:
knee:
ankle:

Answer 9

hip extension
knee flexion
ankle DF

Question 10

loading response
Hip:
knee:
ankle:

Answer 10

Hip: extension
knee: extension
ankle: DF

Question 11

midstance
Hip:
knee:
ankle:

Answer 11

Hip: flexion
knee: flexion
ankle: PF

Question 12

terminal stance
Hip:
knee:
ankle:

Answer 12

Hip: flexion
knee: flexion
ankle: PF

Question 13

pre-swing
Hip:
knee:
ankle:

Answer 13

Hip: flexion
knee: extension
ankle: PF