It's a type of body weight training. I am doing the 100 push ups with a progression close to this. Might help you too 🤙

https://image.nostr.build/9ee78bccb2b6385e7cbd6d8b79ebd9dca06ffc5e77b9161843236efb8723a934.jpg 

 Looks to complicated for me. I’m more of a go with the flow and do whatever my body feels like on any given day. 😂