Lie flat on the machine, hold dumbbells in both hands and lift them from both sides to the middle.
This action is the most typical exercise for chest muscles, so it is recommended that everyone use this method. Specific action essentials:
1. When opening your hands, you must keep the chest muscles in a relaxed state instead of stretching outwards to stretch the chest muscles again.
2. The frequency of movements should not be too fast. Generally, one set of movements in 5 to 6 seconds is enough.
3. Exercise no less than 20 times each time.