Chapters 10 & 11 Flashcards
What are the majority of falls in neurological pathologies associate with?
MOBILITY (during the walking), TRANSFERS, and STAIR CLIMBING
Example of abnormal alignment in PD?
stooped (flexed posture)
rigidity
decreased spinal flexibility
Abnormal postural sway in PD displays:
increase sway area
increased velocity
Adults with DS have:
higher sway velocity
What can increased stiffness be?
compensatory strategy to improve stability
What does a pathology in the cerebellum do?
increase postural sway
Lesion in spinocerebellar (upper vermis and intermediate) part of anterior lobe:
AP sway
Lesion in lower vestibulocerebellar vermis:
increased omnidirectional sway
Lesion in spinocerebellar afferents:
low frequency and large amplitude lateral sway
Coactivation:
characterized by simultaneous contraction of muscles on both anterior and posterior aspects of the body
Coactivation in PD:
activates muscles on both aspects of the body= increasing stiffness of body= ineffective strategy for balance recovery
What are onset latencies in paretic muscles versus nonparetic side?
longer and smaller
Postural adaptation:
ability to modify postural activity with practice
Shifting central set:
ability to change pattern of postural muscle activity quickly in response to changing task conditions
Hypermetric postural responses are associated with which of the following pathologic disorders?
cerebellar conditions
unilateral cerebellar pathology affecting anterior lobe
What does normal postural control require?
organization of sensory information from visual, somatosensory, and vestibular systems
sensorimotor integration
CTSIB condition 1
normal
flat floor
eyes open
CTSIB condition 2
flat floor
blindfolf
CTSIB condition 3
flat floor
dome