What is chair push up?

Also known as an incline push up its when you safely elevate your feet from the ground and do a push up with your hands on the ground. It works your upper pectoral muscles and shoulders the higher the incline the tougher it can be on your shoulders. Make sure whatever you use for your incline is secure like the bottom step of stairs is a good star and the staircase won't move where a chair can be unstable. Good luck.