Fibularis Longus (right) — SENIAM EMG Electrode Placement

Source of the electrode position

Print as a session sheet · A4 with landmarks, signal check and MVC test

Source: SENIAM (Hermens 2000) ↗

Hermens HJ, Freriks B, Disselhorst-Klug C, Rau G. Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyogr Kinesiol. 2000;10(5):361-74.

Based on SENIAM recommendations (Hermens et al. 2000). Not an official SENIAM product. See all references → · SENIAM reference table · How electrodes are placed (guide) · Glossary

Go deeper SENIAM Electrode Positions — All 26 Muscles at a Glance → Why the Electrode Must Not Sit on the Innervation Zone →

All 49 muscle protocols as a PDF — free

Print-ready for the lab or clinic: 77 pages of protocols (SENIAM + peer-reviewed), plus the SENIAM table, a placement checklist and a sensor comparison sheet as A4 sheets.

Anatomy & Function

The M. Fibularis Longus (Fibularis Longus) is a muscle of the lower leg region. It is responsible for eversion (pronation) at the subtalar joint, plantar flexion, stabilization of the transverse arch of the foot. This muscle is one of 26 with official SENIAM-recommended surface EMG electrode placement. This page documents the exact electrode position, anatomical attachments and a standardized test movement based on Hermens et al. (2000).

Function Eversion (pronation) at the subtalar joint, plantar flexion, stabilization of the transverse arch of the foot Origin Fibular head, proximal 2/3 of the lateral fibular surface Insertion Medial cuneiform (plantar), base of the 1st metatarsal (plantar) Innervation Superficial peroneal nerve, L5–S2

Innervation after Perotto AO, Anatomical Guide for the Electromyographer, 5th ed. 2011 — an anatomical reference, not an electrode placement recommendation.

Clinical applications (SENIAM)

Gait analysis and foot drop assessment
Achilles tendinopathy monitoring
Proprioceptive training after ankle injury

Test Movement

Foot eversion against resistance

Measure M. Fibularis Longus activity live

The electrode is placed — what next? easyEMG visualises muscle activity in real time, with SENIAM-compliant placement guidance, up to 4 channels at once and biofeedback training right afterwards.

In screening, this muscle is usually recorded together with its synergists — running several channels in parallel saves the most time.

EMG mapping & muscle analysis → What is EMG biofeedback? PicoBlue sensors

Frequently Asked Questions

Where do I place the EMG electrode on the M. Fibularis Longus?

25% on line from fibular head to lateral malleolus. Orientation: Along the line fibular head–lateral malleolus. Based on the official SENIAM recommendations (Hermens et al. 2000).

Which test movement activates the M. Fibularis Longus?

Foot eversion against resistance. This movement is part of the SENIAM protocol for standardized contraction verification.

Is the M. Fibularis Longus a SENIAM-recommended muscle?

Yes. The M. Fibularis Longus is one of 26 muscles for which the SENIAM project has published official surface EMG electrode placement recommendations.

M. Fibularis Longus

Electrode Placement (SENIAM)