What are the proper techniques for using the lower chest fly machine to target the lower chest muscles effectively?

To effectively target the lower chest muscles using the lower chest fly machine, it is important to adjust the seat height so that the handles are at chest level. Sit with your back flat against the pad, grip the handles with palms facing down, and slowly bring your arms together in a controlled motion. Focus on squeezing your lower chest muscles at the top of the movement, then slowly return to the starting position. Perform the exercise with proper form and a controlled pace to effectively target the lower chest muscles.