You examine a patient who is an avid bicycle rider. He complains of sensory loss on the medial side of his hands and you find some weakness in his intrinsic hand muscles, but not in any other muscle group. You suspect that:

A) the patient used a hand posture that put excessive pressure on the superficial branch of his radial nerve.
B) the patient used a hand posture that put excessive pressure on his ulnar nerve.
C) repetitive wrist flexion and extension that occurred with braking caused swelling of the patient's long flexor tendons at the wrist.
D) the patient's flexed trunk but extended neck posture during riding stressed his neck vertebrae so that osteophytes developed reducing the size of his C8/T1 intervertebral foramen.
E) the patient probably has a cervical rib and that extended periods in the riding position resulted in inflammation around the nerves surrounding this structure.


Ans: B

Health & Biomechanics

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