every muscle "pull" and the joke flew over your head. This just shows your intelligence is low. And just search it up every muscle does in fact pull@@iylun270
pushups can work back to some degree, just pull the shoulder blades back/tighten back and do deep ROM. most powerlifters bench press with lats they say
Haha i got this for my birthday and it definitely makes it nicer to do sets of pushups to warm up focusing on different groups to get a pump for the day or before a proper workout!
U will prob not build ur back from a pushup but since its the base when ur doing pushups itll strengthen and get stronger which will cause a bit of muscle and will help u better with ur pullups