Chapter 14 Flashcards

1
Q

What do limitations in gait result in?

A

restricted participation in the mobility domain

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2
Q

What does mobility disability cause?

A

reduced performance on functional activities

overall ADLs

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3
Q

Effect of motor system impairments:

A

paresis
spasticity
cocontraction
non-neural component

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4
Q

What can paresis/weakness result in?

A

inability to generate adequate FORCES to move the body forward

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5
Q

What does weakness affect the ability to walk independently depend on?

A

which muscles are affected.
how weak are the affected muscles.
What’s the capacity of other muscles to compensate

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6
Q

Plantor flexion gait abnormalities:

A

Strong hyperextension in stance; lack of knee flexion in swing;
Low plantar flexor power/work

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7
Q

Plantor flexion gait abnormalities compensation:

A

Partially compensated by hip flexors during pull-off

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8
Q

Quad gait abnormalities:

A

trouble in stabilizing the knee during MSt

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9
Q

Quad gait abnormalities compensation:

A

Hyperextension in MSt

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10
Q

Hip flexor gait abnormalities:

A

Inadequate hip flexion during swing phase;
Additionally, inadequate hip flexion causes a lack of knee flexion in swing phase; as a result, the toe clearance is reduced or lost

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11
Q

Hip flexor gait abnormalities compensation:

A

abdominals in conjunction with posterior tip of pelvis
circumduction
contralateral vaulting
leaning trunk laterally toward opposite limb

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12
Q

Hip extensor gait abnormalities:

A

Inadequate control of HAT segment;

Forward trunk lean that threatens stability

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13
Q

Hip extensor gait abnormalities compensations:

A

Backward lean in stance used to compensate by controlling CoM

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14
Q

Hip abductor gait abnormalities:

A

Drop of the pelvis on the less impaired side, i.e., Trendelenburg gait

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15
Q

Hip abductor gait abnormalities compensation:

A

A lateral shift of CoM over the stance leg along with lateral lean of the trunk toward the stance leg

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16
Q

How does spasticity contribute to gait disorder?

A

inappropriate activation when muscle is lengthened during the gait cycle
alterations in mechanical properties of the muscle causing changes in intrinsic stiffness

17
Q

What is an abnormal strategy?

A

loss of fractionation of movement (corticospinal lesions)

18
Q

Examples of disordered pattern of muscle activation and recruitment?

A

Reduced recruitment

Overactivity (unrelated to spasticity)

19
Q

Examples of dyscoordination:

A

abnormal synergies
disordered pattern of muscle activation
cocontraction

20
Q

Musculosketal impairments Non-neural contributing factors to dyscoordination):

A

Decreased ROM
Weakness
Contracture
Changes in alignment

21
Q

How many degrees of DF are required for normal progression during gait?

A

5 degrees

22
Q

How many degrees of PF contracture results in low heel contact and early flat foot during loading?

A

15 degrees

23
Q

How about in children with spastic CP to produce a forefoot contact at foot strike

A

30 degrees

24
Q

What do sensory inputs serve as?

A

a trigger for initiation of swing

are necessary for adapting locomotion to changing environmental conditions.

25
Q

Effect of sensory impairments include:

A

Somatosensory deficits
Visual deficits
Vestibular deficits

26
Q

What does somatosensory deficits result in?

A

gait ataxia

27
Q

What can loss of proprioception cause?

A

reduced modulation of muscle activity throughout the gait cycl

28
Q

Visual deficits:

A

Critical to anticipatory control of balance during gait
Critical for obstacle avoidance
Loss of visual inputs affect both stability and adaptability requirements of gait.

29
Q

What do vestibular deficits depend on?

A

the age at the time of the loss of vestibular function

30
Q

Impairment in perceptual system:

A

Body Image and Scheme Disorder
Spatial
Pain
Cognitive

31
Q

Body Image and Scheme Disorder:

A

Decreased stability
Inappropriate foot placement
Difficulty controlling the center of mass relative to a changing base of support

32
Q

Spatial relation disorder:

A

Reduced ability to navigate safely through the environment

“Topographic disorientation”

33
Q

What is antalgic gait pattern characterized by?

A

decreased velocity, shortened stance, stiffer limbs, decreased push-off

34
Q

Compensatory strategies used in presence of pain:

A

Reduced weight bearing on painful side
Avoidance of impact loading
Reduced joint excursion
Decreased joint compressive forces