Triceps Brachii (Lateral Head) (Tri Lat L)
The M. Triceps Brachii Caput Laterale (Triceps Brachii (Lateral Head)) is a muscle of the upper arm region. It is responsible for elbow extension. 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).
Elbow extension
50% on line between acromion and olecranon, 2cm lateral
Orientation: Parallel to line acromion–olecranon
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 \u2192
Elbow extension against resistance
Common use cases for surface EMG measurement of the M. Triceps Brachii Caput Laterale:
50% on line between acromion and olecranon, 2cm lateral. Orientation: Parallel to line acromion–olecranon. Based on the official SENIAM recommendations (Hermens et al. 2000).
Elbow extension against resistance. This movement is part of the SENIAM protocol for standardized contraction verification.
Yes. The M. Triceps Brachii Caput Laterale is one of 26 muscles for which the SENIAM project has published official surface EMG electrode placement recommendations.
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