Pectoralis Major (Abdominal Head) (Pec Abd L)
The M. Pectoralis Major Pars Abdominalis (Pectoralis Major (Abdominal Head)) is a muscle of the shoulder region. It is responsible for depression and adduction of arm, accessory respiratory muscle. 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).
Depression and adduction of arm, accessory respiratory muscle
Pull arm from elevation downward-inward 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 (Abdominal Head) is typically recorded to track progress and retrain activation.
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