Pectoralis Major (Clavicular Head) (Pec Clav R)
The M. Pectoralis Major Pars Clavicularis (Pectoralis Major (Clavicular Head)) is a muscle of the shoulder region. It is responsible for anteversion, adduction, internal rotation at shoulder joint. This muscle is not covered by the official SENIAM catalogue — placement is based on established clinical literature. This page documents the exact electrode position, anatomical attachments and a standardized test movement based on Hermens et al. (2000).
Anteversion, adduction, internal rotation at shoulder joint
2cm medial to anterior axillary fold
Orientation: Toward clavicle–axillary fold
Król H, Sobota G, Nawrat A. Effect of electrode position on EMG recording in pectoralis major. J Hum Kinet. 2007;17:105-112.
Based on SENIAM recommendations (Hermens et al. 2000). Not an official SENIAM product. See all references →
Horizontal adduction of arm at 90 degrees flexion against resistance
This muscle has no SENIAM-standardized electrode position. Placement should be based on anatomical knowledge.
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 rehabilitation, the Pectoralis Major (Clavicular Head) is typically recorded to track progress and retrain activation.
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