About this exercise
The pec deck fly isolates the chest muscles through a controlled horizontal squeezing motion. The machine keeps tension on the pecs while supporting the arms for a safe, focused contraction.
Pec deck chest
Step by step instructions, muscle activation and variants for the Pec deck chest.
EasyUpper chestMiddle chest
How to Perform
- Sit on the pec deck machine with your back flat against the pad and feet planted on the floor
- Grasp the handles with your elbows slightly bent and roughly at shoulder height
- Brace your core and keep your shoulders down and back
- Bring the handles together in front of your chest by squeezing your pecs
- Pause and contract at the point where the handles meet
- Slowly return to the starting position under control, feeling a stretch across your chest
- Repeat for the desired number of repetitions
Muscle Activation
Primary
Upper chestMiddle chest
Secondary
Front shoulders
Common Mistakes
Common mistakes content is coming soon.
About the Pec deck chest
The Pec deck chest is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.
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