Which lower extremity muscle groups are tested on the MRC-SS?

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Multiple Choice

Which lower extremity muscle groups are tested on the MRC-SS?

Explanation:
The lower-extremity portion of the MRC-SS tests three key movements that reflect the main muscle groups of the leg and are reliably assessable in ICU patients: hip flexion (iliopsoas), knee extension (quadriceps), and ankle dorsiflexion (tibialis anterior). These movements are chosen because they cover proximal to distal strength and provide a representative, practical snapshot of leg function for the MRC sum score. The other movements listed in the distractors aren’t part of the standard lower-extremity testing set for the MRC-SS, so they wouldn’t contribute to this score.

The lower-extremity portion of the MRC-SS tests three key movements that reflect the main muscle groups of the leg and are reliably assessable in ICU patients: hip flexion (iliopsoas), knee extension (quadriceps), and ankle dorsiflexion (tibialis anterior). These movements are chosen because they cover proximal to distal strength and provide a representative, practical snapshot of leg function for the MRC sum score.

The other movements listed in the distractors aren’t part of the standard lower-extremity testing set for the MRC-SS, so they wouldn’t contribute to this score.

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