Chest Fly Machine | Complete Chest Workout Guide

A fly machine, also known as a chest fly machine or pec fly machine, is designed to target the chest through a controlled arm-adduction movement. The primary muscles worked are the pectoral muscles, while the front shoulders assist during the exercise. A chest fly machine can help users maintain a consistent movement path and controlled resistance. When choosing a machine, consider frame quality, seat adjustment, arm positioning, resistance system, comfort, safety, durability, and available gym space.