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Muscle
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 Click on image for larger view |
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Name
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Peroneus Brevis
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Subdivision
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Muscle Anatomy
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Origin
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Distal 2/3 of lateral surface of fibula and adjacent intermuscular septa. | |
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Insertion
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Tuberosity at base of fifth metatarsal bone, lateral
side.
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Function
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Eversion of the foot and assist in plantar flexion
of ankle joint.
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Recommended sensor placement procedure
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Starting posture
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Sitting with extremity medially rotated.
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Electrode size
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Maximum size in the direction of the muscle fibres:
10 mm.
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Electrode distance
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20 mm.
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Electrode placement
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- location
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Electrodes need to be placed anterior to the tendon
of the m. peroneus longus at 25% of the line from the tip of the
lateral malleolus to the fibula-head.
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- orientation
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In the direction of the line from the tip of the
lateral malleolus to the fibula-head.
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- fixation on the skin
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(Double sided) tape / rings or elastic band.
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- reference electrode
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On / around the ankle or the proc. spin. of C7.
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| Clinical test | Support the leg above the ankle joint. Everse the foot with plantar flexion of the ankle joint while applying pressure against the lateral border and sole of the foot, in the direction of inversion of the foot and dorsiflexion of the ankle joint. | |
| Remarks |
It is difficult to access the peroneus brevis muscle
from the surface since it is mainly covered by other muscles. Avoid
crosstalk / overlap from the extensor digitorum lateralis muscle.
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