Elena presents with significant muscle atrophy in the lower extremities, fasciculations of the gastrocnemius, and a 1+ Achilles tendon reflex. During gait, the patient demonstrates a "slapping" foot strike. These signs are MOST indicative of:

A) A lesion in the corticospinal tract
B) An injury to the cerebellum
C) Compression of the posterior columns
D) A lesion in the anterior horn cells

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Yesenia is a 37-year-old patient with lumbar disc herniation who reports pain radiating to the posterior thigh. During treatment, repeated lumbar extension causes leg pain to resolve but increases central low back discomfort. Which intervention is MOST appropriate to continue?

A) Discontinue extension due to increased lumbar pain

B) Progress lumbar flexion exercises to reduce spinal compression

C) Continue repeated lumbar extension within tolerance

D) Introduce hamstring stretching to reduce neural tension

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Benito, a patient with a right transfemoral amputation, demonstrates circumduction of the prosthetic limb during the swing phase. Which of the following prosthetic causes is MOST likely contributing to this deviation?

A) Insufficient socket flexion

B) Socket is excessively abducted

C) Knee friction is too low

D) Foot is set too posteriorly

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