Today I've finished the construction of my parallets. When I was testing my work with some push ups, my brother watched me and told me "if you do more than 90 degrees in a push up, then you are doing useless effort". This is so strange and confusing, because I do a push up and my chest is almost touching the floor.
What can you tell me about this?
regards! And sorry for my english (is the entire text correctly spelled?)
