not interested....I know a really hot actress and model. She needs surgery on her shoulders from too many push ups. I can do 20+ pull ups but have hurt myself doing both pushes and pulls. One things for sure, in a few weeks push ups temporarily improve the look of a mans physique (but you must maintain or do 1,000+ a day, once a week, to effect permanent change). In boxing we have kids do explosive push ups to produce snap. I bet that fewer pro atheletes do push ups than the weekend warriors on these boards. The pro tennis players and championship and journeyman pro kickboxers and boxers I train with did them as kids and don't need any more of that type of strength...
as a trainer and ptr certified pro I reccomend learning perfect form, stretching, and proper footwork. These produce less injuries, conform to wise and safe ancient principles of physical development...