CSRS Neuroplasticity & Motor Recovery 2

Question 1

According to Brunnstrom's stages of motor recovery, what characterizes Stage 3?

Accepted Answer

Voluntary movement is possible but only within obligatory synergy patterns, with spasticity at its peak

Answer

Brunnstrom Stage 3 is defined by the appearance of voluntary movement confined to abnormal flexion or extension synergy patterns, coinciding with maximal spasticity.

Question 2

Which factor is considered most critical for driving neuroplasticity and functional motor recovery after stroke?

Accepted Answer

High-intensity, task-specific, repetitive practice

Answer

High-intensity, task-specific, repetitive practice is the most potent driver of neuroplasticity because it repeatedly activates target neural circuits, promoting synaptic strengthening and cortical reorganization.

Question 3

What is Brain-Derived Neurotrophic Factor (BDNF) and its significance in stroke recovery?

Accepted Answer

A neurotrophin that promotes neuron survival, synaptic growth, and neuroplasticity, increased by aerobic exercise

Answer

BDNF is a key protein that supports neuronal survival, promotes synaptic plasticity, and facilitates motor learning; aerobic exercise significantly upregulates BDNF expression in the brain.

Question 4

What is the primary neuroplastic mechanism targeted by Constraint-Induced Movement Therapy (CIMT)?

Accepted Answer

Overcoming learned non-use of the affected extremity by restraining the unaffected limb and forcing use of the impaired arm

Answer

CIMT targets learned non-use by physically constraining the intact limb, compelling the patient to use the affected arm and inducing cortical reorganization in motor areas.

Question 5

What is axonal sprouting in the context of post-stroke neuroplasticity?

Accepted Answer

Growth of new branches from intact surviving axons that form new synaptic connections with denervated neurons

Answer

Axonal sprouting involves surviving neurons extending new axon collaterals to form synapses with neurons that lost their original input, contributing to functional circuit restoration.

CSRS - Certified Stroke Rehabilitation Specialist Practice Test

CSRS - Certified Stroke Rehabilitation Specialist Practice Test

CSRS Neuroplasticity & Motor Recovery 2