Decreased sensibility was observed in the upper extremities, the shoulder and the elbow joint of the left upper extremity evidenced no muscle activity, with slight muscle activity being detected in the wrist as well as incipient motor impairment in the lower extremities.

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Note added at 4 hrs (2023-09-03 21:41:58 GMT)
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Proportional Recovery From Lower Limb Motor Impairment ...
https://www.ahajournals.org › full
MC Smith · 2017 · — This study investigated resolution of motor impairment in the lower limb (LL). Methods—. Patients with stroke and LL weakness were assessed 3 ...

Motor Impairment - International Neuromodulation Society
https://www.neuromodulation.com › ...
22 nov. 2021 — Motor impairment is partial or total loss of function of a body part, with poor stamina, lack of muscle control, or total paralysis.

could also be "motor dysfunction:

Decreased sensibility was observed in the upper extremities, the shoulder and the elbow joint of the left upper extremity evidenced no muscle activity, with slight muscle activity being detected in the wrist as well as incipient motor dysfunction in the lower extremities.

Lower extremity motor function and disability in mild cognitive ...
https://pubmed.ncbi.nlm.nih.gov › ...
PA Boyle · 2007 · — Recent findings suggest that lower extremity motor dysfunction may be a feature of mild cognitive impairment (MCI) ...

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Note added at 7 hrs (2023-09-04 00:01:52 GMT)
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could also be "motor dysfunction" instead of "motor impairment":

Decreased sensibility was observed in the upper limbs, the shoulder and the elbow joint of the left upper limb evidenced no muscle activity, with slight muscle activity being detected in the wrist as well as incipient motor dysfunction in the lower limbs.