Rehabilitation Equipment

The butterfly machine is a relatively stable piece of equipment that primarily serves to work the chest muscles. When using it, you need to exert force with the chest, acting as a chest muscle exercise machine. First, sit on the chair, with the seat positioned slightly higher or lower. Use both hands to grip the handles, and rest your elbows against the stoppers. During motion, avoid making large movements to prevent muscle strain.
This set of drawings is primarily for use in rehabilitation medical equipment and facilitates chest expansion exercises through slow movements, making it a practical exercise therapy.
The structure is complete and conforms to human biomechanics.