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Questions and Answers
Which brain structures, when damaged, impair processing of incoming sensory information and disrupt anticipatory and reactive postural adjustments?
Which brain structures, when damaged, impair processing of incoming sensory information and disrupt anticipatory and reactive postural adjustments?
- Basal ganglia
- Cerebellum
- Supplementary motor area
- All of the above (correct)
Patients with Parkinson’s disease tend to have a smaller than normal amplitude of movement due to co-activation of muscles on both sides of the body. What do patients with cerebellar lesions typically demonstrate?
Patients with Parkinson’s disease tend to have a smaller than normal amplitude of movement due to co-activation of muscles on both sides of the body. What do patients with cerebellar lesions typically demonstrate?
- No change in response amplitudes
- Larger response amplitudes (correct)
- Smaller response amplitudes
- Normal response amplitudes
Which factor increases a person's chance of exceeding his or her limits of stability?
Which factor increases a person's chance of exceeding his or her limits of stability?
- Declines due to aging in all sensory systems
- Muscle strength at one joint altering posture and balance movements throughout the entire limb
- Postural malalignment shifting the center of mass (COM) closer to the base of support (BOS) (correct)
- Reduced functioning and premature nursing home admissions
What is a major cause of morbidity, mortality, and reduced functioning in persons over age 65?
What is a major cause of morbidity, mortality, and reduced functioning in persons over age 65?
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What can cause deficits in the motor components of balance control?
What can cause deficits in the motor components of balance control?
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