This exercise also strengthens the muscles that support the lower spine as you maintain good and upright posture, which is essential for maintaining a healthy back. The reverse fly targets the ...

This cross section through the flight muscles of a dancer damselfly shows in blue the muscle fibers that the fly uses to flap its wings. You can also see the nerve that stimulates these muscles in red ...

Lower the weights back to the start and repeat. If you're working your chest muscles on the fly machine, reverse flies are a must. But if you don't have access to a gym, try the exercise with a ...