gait review

Question 1

which phase of gait has the largest percentage

Answer 1

stance phase

60%

Question 2

5 characteristics of normal gait

Answer 2

energy conservation

pre-positioning

stability in stance

adequate step length

foot clearance

Question 3

how much flexion at the hip do we need for ground clearance

Answer 3

30-35 degrees

Question 4

what is another name for foot flat

Answer 4

loading response

Question 5

mid-stand at the hip muscle actions

Answer 5

glute med in the frontal plane

any point of single leg stance –> glute med and TFL

Question 6

what is the terminal stance

Answer 6

heel off

Question 7

which points of gait do we have double support

Answer 7

whenever we have 2 feet on the ground

toe off to heel off and the other foot is in heel strike to foot flat

accounts for 20% of total gait (10% for each leg)

Question 8

in right midstance

Answer 8

COG will be one inch up and 1 inch to the right

Question 9

COG

Answer 9

2 total inches vertically and horizontally

1 up and 1 down

1 right and 1 left

Question 10

right midswing

Answer 10

COG will be one inch down and one inch left

COG will move in the same direction as the leg on the ground

Question 11

which side of the pelvis will drop during gait

Answer 11

opposite

whatever leg/hip is not supported

excessive hip drop = uncompensated trendelenberg

compensated trendelenberg = trunk lean to the same side of the compensation

Question 12

during heel stroke

Answer 12

COG drops

Question 13

during midstand –> GRF

Answer 13

ZERO

NONE

NOTHING ON THE GROUND

Question 14

in the sagittal plane, stepping forward on one leg

Answer 14

arms and pelvis are opposite

pelvis will rotate forward

arms go backward