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Doug Brignole Q&A: Workout Tip #6: Do Flyes Work Inner or Outer Pecs?

Iron Man magazine writer Doug Brignole (Mr. America Winner and Exercise Biomechanics Specialist) answer reader questions about proper exercise techniques. Today’s exercise video how-to focuses on which exercises work the inner and outer pecs. Neither! When muscles pull, they pull in its entirety. Read up on the all-or-nothing principle of muscle contraction.

Watch it on YouTube:

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