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Pec Deck Fly

Chest muscle line
Pec Deck Fly gif
Targets: Middle chest

About

It's a Fly workout that even beginners can do without much difficulty. You can feel strong contraction and relaxation. It's easier if you imagine you are holding a huge log!

Coach's Tips

Please adjust the chair height so that the handle is at chest height.

Is your back straight? Please straighten your back and naturally spread your chest and shoulders.

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How to Pec Deck Fly

Starting Position

1. Please sit in the chair with your chest out and your back straight.

2. Please adjust the chair so that the armrests and your chest are in a straight line.

3. Hold the grip naturally with both hands.

4. If it's difficult to hold the grip, please grab it one side at a time.

Proper Form

1. With your arms slightly bent, use your chest muscles to bring your hands together.

2. Slowly return to the starting position.

Breathing Technique

Exhale when you bring your arms together, and inhale when you spread your arms out.

Precautions

1. Please use light weights as this exercise can put strain on your shoulders.

2. If you experience shoulder pain, please stop and substitute with another exercise.

3. Be careful not to fully extend your arms.

From the Community

Pec Deck Fly Community

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Pec Deck Fly Related Reading

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    3 days a week is enough โ€” and a J Strength Cond Res RCT of 32 athletes proves it works

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  • Squat vs. leg press: the muscle gains are the same when volume matches, per a 2025 RCT of 70 women
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    Squat vs. leg press: which builds more muscle? When sets and reps are matched, growth is virtually identical โ€” according to a 2025 RCT of 70 trained women.

  • Mechanical tension is the primary driver of muscle growth โ€” and 5 peer-reviewed reviews in Sports Med explain exactly why
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    Mechanical tension is the primary driver of muscle growth โ€” and 5 peer-reviewed reviews in Sports Med explain exactly why

    Mechanical tension isn't just one factor in muscle growth โ€” it's the main one. Here's what the science actually says, across 5 reviews in top sports-science journals.

  • Cardio before or after weights: why the order depends on your goal
    What Actually Matters

    Cardio before or after weights: why the order depends on your goal

    Do cardio before or after lifting? The answer depends entirely on your goal. Here's what the interference effect and a 2024 meta-analysis of 23 RCTs actually say.

  • How Many Sets of Biceps Per Week? 10 Is Probably Your Ceiling
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    How Many Sets of Biceps Per Week? 10 Is Probably Your Ceiling

    More biceps sets doesn't mean more growth. Two RCTs show 5โ€“10 weekly sets match or beat 15โ€“32 โ€” here's the number that actually matters.

  • 10 sets per muscle group per week is probably enough โ€” here's the number that actually matters.
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    10 sets per muscle group per week is probably enough โ€” here's the number that actually matters.

    Most lifters chase 20+ sets per muscle group. The research says you can grow on far less โ€” and more isn't always better, according to a 2024 Sports Med meta-analysis.

Curious about a Chest workout plan that includes the Pec Deck Fly

Pec Deck Fly Alternatives

Dumbbell Fly

Dumbbell Fly

Incline Dumbbell Fly

Incline Dumbbell Fly

More

Pec Deck Fly vs

  • Pec Deck Fly vs Bench Press
  • Pec Deck Fly vs Dumbbell Bench Press
  • Pec Deck Fly vs Dumbbell Pullover

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