Exercise library / Pec Deck (Machine Fly)

Isolation · Isolation

Pec Deck (Machine Fly)

Pec Deck (Machine Fly) isolates the chest with minimal help from other muscles. Use a deliberate tempo and a full range of motion — momentum steals the tension this movement exists to create. Your shoulders assist throughout, and the loaded stretch at long muscle length makes it a strong hypertrophy choice.

Primary muscles
Chest
Secondary muscles
Shoulders
Equipment
Machine
Movement pattern
Isolation
Type
Isolation (single-joint)

Substitutions

  • Cable Fly

    Same isolation pattern · also trains the chest.

  • Dumbbell Fly

    Same isolation pattern · also trains the chest.

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