7 Exercises You Don’t Have to Do Anymore

Chest Fly Machine

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3. The Chest Fly Machine

While this machine can build chest/pectoral muscles, it’s also dangerous for your shoulders.

Research has shown that having your shoulders in this position, while pulling weights forward, and is a very good way to damage your rotator cuffs.

There are many other free weights and machines that can improve your chest without risking damage to your shoulders.

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