Pec Deck
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Machine pec-deck flye; performing it with a slightly bent elbow gives a stronger contraction for the sternal pectoralis and anterior deltoid.
Detail
Performing the pec deck exercise with a slightly bent elbow in the horizontal-adduction position provides a stronger contraction for both the sternal pectoralis and the anterior deltoid, because of proper muscle positioning. The pec deck occupies the "stretch" and "contracted" positions of the Positions-of-Flexion pectoral chart. Listed as a novice pectoral selection.
Key facts
- Primary: Pectoralis Major (sternal); Secondary: Anterior Deltoid.
- Use a slightly bent elbow for a stronger contraction (proper muscle positioning).
- "Stretch"/"contracted" positions in the pectoral Positions-of-Flexion chart.
Connections
- Pectoralis Major — primary mover (sternal).
- Anterior Deltoid — assisted by the bent-elbow position.
- Horizontal Flexion (Adduction) — the primary joint action.
- Dumbbell Flyes / Cross Over Cables — related flye movements.
Sources
Exercise guides
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Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.