Week 5.2 Postural Control after BI

Question 1

what are some consequences of impaired stability

Answer 1

you lose independence, restricted in participation in things and reduced confidence. also, and increase in fall risk

Question 2

what percent of stroke patients fall

Answer 2

25-26%

Question 3

what percent of people who fall need medical attention

Answer 3

15%

Question 4

what percent of PD patients fall

Answer 4

40-68%

Question 5

what happens to alignment in people with neuromuscular dysfunction

Answer 5

it changes

Question 6

what happens to postural sway

Answer 6

it increases and it becomes asymmetric

Question 7

what happens to functional stability limits

Answer 7

there is less limits of stability, and less COP excursion

Question 8

what is a good prognostic indicator of outcome following a stroke and TBI

Answer 8

steady state balance in sitting

Question 9

how is reactive balance impaired

Answer 9

can have a hard time sequencing, coactivating, delayed postpones and modifying strategies (like hip and ankle), and impaired central set

Question 10

what are some changes in support strategies

Answer 10

you can’t get that anticipatory lateral weight shift, so that is hard for stepping (because you need that M/L anticipatory postural adjustment)

Question 11

what else happens to the support strategy of stepping after a BI

Answer 11

you might have to take many steps, or you might not start the step mechanism in time, it might be delayed

Question 12

what happens to the anticipatory activation after stroke or BI

Answer 12

there is a lack of this activation, in both the limbs and trunk

Question 13

what areas of the brain provide circuitry for anticipatory postural control

Answer 13

supplemental motor cortex, BG, cerebellum

Question 14

what happens to sensory and perceptual systems after a BI

Answer 14

you cannot compensate for loss of dysfunction in one system (visual, somatosensory and vestibular) with the others

Question 15

what is a test we can use to test the sensory and perceptual systems

Answer 15

the clinical test of sensory interaction in balance, CTSIB

Question 16

TF: sensory problems don’t affect reactive balance,

Answer 16

false

Question 17

what are some sensory problems that can affect reactive balance

Answer 17

you may have a hard time scaling the magnitude of the response you would need, or you have synergies that don’t work

Question 18

what are some sensory problems that affect anticipatory balance

Answer 18

earlier activations are needed, they can’t adapt, and they can’t process what they need to happen before it is too late

Question 19

what is a huge perceptual problem in post stroke patients that affects postural control l

Answer 19

perceptions of vertical are off, so they lose their balance.

Question 20

what are some cognitive problems with postural control after a BI

Answer 20

you are not confident you can do it without falling, lack of self- efficacy, also, hard to split your attention between two thins. you cannot focus on more than one, and it takes a lot of focus to stay balanced.

Question 21

TF: impaired postural control decreases attention demands on balance

Answer 21

false, it increases attention demands

Question 22

what do we need to make sure is available for normal posture and balance to occur

Answer 22

flexibility and ROM