NPTE-PT Neuromuscular System Interventions 2

Question 1

A patient with stroke has difficulty initiating voluntary movement. Which PNF technique is MOST appropriate to address this impairment?

Accepted Answer

Rhythmic initiation

Answer

Contract-relax

Answer

Repeated contractions

Answer

Slow reversal hold

Question 2

Which motor learning feedback schedule produces the BEST long-term retention of a motor skill in neurological rehabilitation?

Accepted Answer

Faded feedback with reduced frequency over time

Answer

Continuous feedback after every trial

Answer

Blocked feedback after every 10 trials

Answer

No augmented feedback provided

Question 3

Neuromuscular electrical stimulation (NMES) produces its strongest therapeutic effect in which patient population?

Accepted Answer

Upper motor neuron lesion with intact peripheral nerve and some volitional control

Answer

Complete spinal cord injury with no voluntary movement

Answer

Peripheral neuropathy with axonal degeneration

Answer

Myasthenia gravis with neuromuscular junction dysfunction

Question 4

During motor skill acquisition, random practice of multiple tasks is preferred over blocked practice because of which effect?

Accepted Answer

Contextual interference from random practice enhances long-term retention and transfer

Answer

Random practice reduces overall training time

Answer

Blocked practice causes excessive muscle fatigue

Answer

Random practice increases motivation through novelty

Question 5

Surface EMG biofeedback is used with a post-stroke patient. What is the PRIMARY therapeutic goal?

Accepted Answer

Provide real-time sensory information to facilitate volitional muscle activation

Answer

Accurately measure absolute muscle force

Answer

Replace the need for manual muscle testing

Answer

Assess peripheral nerve conduction velocity

Question 6

Which duty cycle parameter in NMES is MOST directly adjusted to manage muscle fatigue during functional electrical stimulation training?

Accepted Answer

On-to-off time ratio

Answer

Pulse frequency (Hz)

Answer

Pulse width (microseconds)

Answer

Peak current amplitude (mA)

Question 7

A therapist uses PNF rhythmic stabilization at the shoulder for a patient with rotator cuff weakness post-neurological injury. What is the PRIMARY physiological mechanism?

Accepted Answer

Facilitating co-contraction of agonist and antagonist muscles via alternating isometric resistance

Answer

Stretching the glenohumeral capsule through alternating rotation

Answer

Inhibiting overactive muscles through reciprocal inhibition

Answer

Strengthening only the external rotators through concentric contractions