Unit 5 - Lower Limb: Gait Cycle (Ex. IV)

Question 1

What % does the stance phase make up?

Answer 1

~60%

Question 2

What % does the swing phase make up?

Answer 2

~40%

Question 3

What does one cycle of gait consist of?

Answer 3

action of one leg through each of the 2 phases

Question 4

sequence of stance phase

Answer 4

heel strike –> stabilization of pelvis as foot accepts weight of the body –> stabilization of pelvis, knee, and ankle at midstance –> push off that includes “heel lift” and “toe off” and stablization of pelvis

arches of foot are preserved throughout stance phase

Question 5

sequence of swing phase

Answer 5

forward acceleration of the thigh –> foot clears ground as it swings forward –> thigh decelerates in preparation for landing –> knee extends and positions foot as foot prepares for heel strike

Question 6

muscles active in heel strike of stance phase

Answer 6

hip extensors

dorsiflexors

Question 7

muscles active in initial pelvis stabilization as foot accepts body weight of stance phase

Answer 7

hip adductors
knee extensors
plantar flexors

Question 8

muscles active at midstance w/ stabilization of pelvis, knee, and ankle of stance phase

Answer 8

hip abductors
knee extensors
plantar flexors

Question 9

muscles active in terminal push off of stance phase

Answer 9

hip abductors

plantar flexors

Question 10

muscles active in forward acceleration of thigh of swing phase

Answer 10

hip flexors

Question 11

muscles active when foot clears ground to swing forward in swing phase

Answer 11

dorsiflexors

Question 12

muscles active in deceleration of thigh in swing phase

Answer 12

hip extensors

Question 13

muscles active in heel strike/knee extension positioning of foot in swing phase

Answer 13

knee extensors

dorsiflexors

Question 14

What are the 2 phases of the gait cycle?

Answer 14

stance phase

swing phase