class two: normal gait Flashcards

1
Q

what is a stride

A

one completed gait cycle

original foot comes back down again

3 feet

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2
Q

what is a step

A

one foot and then the next foot

2 feet

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3
Q

what is stance phase time versus swing phase time

A

60/40

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4
Q

what is the order of the rocker for amb

A

heel rocker

ankle rocker

forefoot rocker

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5
Q

when pt is in initial contact or using heel rocker what muscles are controlling that movement

A

anterior muscle

look at the line of force

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6
Q

when a pt is at toe off or using their forefoot rockers what muscle are being used

A

posterior muscle

look at the line of force

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7
Q

ROM at hip needed for normal gait: stance phase

A

0-30° flexion and 0 – 10-20° hyperextension

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8
Q

ROM at hip needed for normal gait: swing phase

A

20-30° flexion

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9
Q

ROM at knee needed for normal gait: stance

A

0-40° flexion

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10
Q

ROM at knee needed for normal gait: swing

A

0-60° flexion

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11
Q

ROM at ankle needed for normal gait: stance

A

0-10° DF, 0-20° PF

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12
Q

ROM at ankle needed for normal gait: swing

A

0-10° PF

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13
Q

pretibial muscles - Prior to and during heel strike

A

̶Eccentric contraction – Lowers foot to the ground

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14
Q

pretibial muscle - Prior to and during swing

A

̶Concentric contraction – Dorsiflexion, clear toes off ground

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15
Q

calf muscles - midstance

A

̶Eccentric contraction – Control of tibia over the foot

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16
Q

calf muscle - heel off

A

̶Concentric contraction – Ankle plantarflexion

17
Q

what are the hip abd

A

TFL, glute med and glute min

18
Q

hip abd during stance phase

A

̶Eccentric contraction – Stabilize pelvis

19
Q

what are our hip add

A

Adductor longus/brevis, Gracilis, Adductor magnus (horizontal and
vertical heads)

20
Q

hip add during early and later stance phase

A

̶Concentric contraction – Stabilize pelvis

21
Q

quads - heel strike

A

̶Quadriceps femoris contracts eccentrically- Control rapid knee flexion and to prevent buckling

22
Q

quads - pre swing

A

̶Eccentric contraction – Slow down leg (tibia)

23
Q

hamstrings - heel strike

A

̶Eccentric contraction – Protects knee from hyperextension

24
Q

hamstring - swing phase

A

̶Concentric contraction – Knee flexion

25
weak muscle when in stance
you are alway going to lean over the weak muscle
26
heel rockers - was muscle are workin
heel rocker - anterior muscles
27
foot rockers - was muscle are working at the end and what rocker is used
forefoot rocker - posterior mucles
28
hip flexor tightness will have what impact on step length
decreased step length on the other side
29
what muscle is used during ankle rocker
plantar flexors, working eccentrically to control the ankle dorsiflexion that occurs.
30
rockers and gait cycle - to clear my mind
heel - ecc DF ankle - ecc PF forefoot - con PF
31
What is the average walking velocity for normal gait?
3mph
32
what is a more forcefull contraction - eccentric on concerntric
Eccentric action is more intense than concentric action of a muscle
33
what control do the hamstring have during terminal swing
he hamstrings act eccentrically to decelerate knee extension in preparation for the placement of the foot on the ground.
34
significant (~30°) plantar flexion contracture will cause what of the following gait deviations
Shortened stride length The forefoot is the only mode of support Loss of forward progression
35
Which muscles function primarily to control the hip during stance phase of the gait cycle?
Abductors and Extensors
36
Hip Abductors work to stablize the pelvis during what phase of gait
stance
37
Hip Adductors work to stablize the pelvis during what phase of gait
Early and late stance
38
what is the function of the glute max and hamstrings during stance phase
work eccentrically to resist flexion moment and decelerate the leg
39
The main muscles that act at hip joint during the stance phase - are what
extensors and abductors