Dr. Mark

Training

Machine Pec Fly

Machine Pec Fly

Train.exerciseLibrary.primaryMuscles

  • Pectoralis major

Secondary muscles

  • Anterior deltoid
  • Serratus anterior

Technique

  • Adjust the seat so the elbows align with the machine axis.
  • Keep the chest lifted and shoulders down.
  • Bring the handles together in a smooth arc in front of the chest.
  • Squeeze the chest at peak contraction.
  • Return slowly until a comfortable stretch is felt.

Common mistakes

  • Using excessive weight.
  • Shrugging the shoulders.
  • Bouncing out of the stretched position.
  • Incomplete range of motion.

Special recommendations

  • Focus on chest contraction rather than handle movement.
  • Use moderate load for clean control.
  • Keep a slight bend in the elbows if the machine allows.

When to use

  • Chest hypertrophy training.
  • Accessory work after pressing exercises.
  • Learning chest isolation with a fixed path.

Consider modifications if

  • Moderate shoulder pain occurs during chest stretching or fly movements.
  • Moderate chest or shoulder discomfort increases with loading.
  • Proper technique cannot be maintained throughout the exercise.

In these situations, consider reducing load, adjusting technique, choosing an alternative exercise, or consulting a qualified professional.

Experience level

  • Beginner
  • Intermediate
  • Advanced