Triceps Brachii (Long Head) (Tri Long R)
The M. Triceps Brachii Caput Longum (Triceps Brachii (Long Head)) is a muscle of the upper arm region. It is responsible for elbow extension, shoulder retroversion and adduction. 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, shoulder retroversion and adduction
50% on line between acromion and olecranon, mid-posterior
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 with slightly retroverted arm
Common use cases for surface EMG measurement of the M. Triceps Brachii Caput Longum:
50% on line between acromion and olecranon, mid-posterior. Orientation: Parallel to line acromion–olecranon. Based on the official SENIAM recommendations (Hermens et al. 2000).
Elbow extension against resistance with slightly retroverted arm. This movement is part of the SENIAM protocol for standardized contraction verification.
Yes. The M. Triceps Brachii Caput Longum is one of 26 muscles for which the SENIAM project has published official surface EMG electrode placement recommendations.
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