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3rd Semester Kinesiology > Gait > Flashcards

Flashcards in Gait Deck (26)
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1

When heel touches ground

Beginning of stance phase, weight acceptance begins

initial contact

2

joint motion for initial contact:

hip

knee

ankle

pelvic rotation

hip: flexed 30°

knee: extension 0°, possible 5° flexion

ankle: neutral (90°)

pelvic rotation: anterior

3

foot flat, entire foot contacts ground, heel rocker

weight is shifted onto limb and the entire foot makes contact w/ ground

loading response

4

joint motion loading response:

hip

knee

ankle

pelvic rotation

hip: 30° flexion moving to extension

knee: 15-20° flexion

ankle: 15° plantar flexion

pelvic rotation: anterior

5

loading response peak torque muscles:

tibialis anterior (eccentric)

(also quads, biceps femoris, glute max, adductor magnus)

6

when the opposite foot leaves the ground

ends when the body is directly over the weight bearing limb

ankle rocker

midstance

7

joint motion midstance:

hip

knee

ankle

pelvic rotation

hip: extension --> neutral

knee: brief 18° flexion --> 0° extension

ankle: 10° dorsiflexion

pelvic rotation: neutral

8

peak torque muscles during midstance

quads (early in phase), glute med concentrically, gastroc and soleus eccentrically

9

body passes beyond stance leg, single limb support ends, forefoot rocker

as the heel of the weight bearing limb rises, ends at initial contact of the opposite foot

terminal stance

10

joint motion terminal stance

hip

knee

ankle

pelvic rotation

hip: 10° extension

knee: 0°

ankle: 10° dorsiflexion --> 5° plantarflexion

pelvic rotation: posterior

11

terminal stance peak torque muscles

gastroc/soleus concentrically

12

begins at initial contact of the opposite leg when weight is shifted onto opposite

ends just before the toes of the weight bearing limb leave the ground

brief time of DLS

preswing

toe off

13

joint motion preswing:

hip

knee

ankle

pelvic rotation

hip: neutral

knee: 40° flexion

ankle: 20° plantarflexion

pelvic rotation: posterior

14

peak torque muscle for preswing

iliacus

preswing is mostly a passive movement

15

begins when toes leave ground

ends when swing foot is opposite, the weight bearing foot and the knee is in maximal flexion

initial swing

acceleration

16

joint motion initial swing

hip

knee

ankle

pelvic rotation

hip: 20° flexion

knee: 60° flexion

ankle: 10° plantar flexion --> neutral

pelvic rotation: posterior

17

peak torque muscles during initial swing

tibialis anterior, long toe extensors, hamstrings, biceps femoris short head, sartorius, gracilis

18

begins when swing foot is opposite weight bearing foot

ends when the swing leg is in front of the body and tibia is perpendicular to ground

max knee flexion for clearance required

midswing

19

joint motion midswing

hip

knee

ankle

pelvic rotation

hip: 30° flexion

knee: 30° flexion

ankle: neutral

pelvic rotation: neutral

20

peak torque muscles during midswing

tibialis anterior concentrically

(iliacus)

21

begins when tibia is vertical to ground

ends just prior to initial contact

terminal swing

deceleration

22

joint motion at terminal swing

hip

knee

ankle

pelvic rotation

hip: 30° flexion

knee: 0°

ankle: neutral

pelvic rotation: anterior

23

peak torque muscles during terminal swing

hamstrings eccentrically

tibialis anterior concentrically

(quads)

24

Total Range requirements for gait at hip:

flexion: 30°

extension: 10°

25

total range requirements for gait at knee:

flexion: 60°

extension: 0°

26

total range requirements for gait at ankle:

dorsiflexion: 10°

plantarflexion: 20°