Sure you can - as long as it's very brief. It helps if you breathe like you should when you lift weights - exhale on the up movement, and inhale on the down movement. There's really a lot to think about when doing push-ups the right way - form plus proper breathing - but it all adds up to being able to do more.
"You can't win them all - but you can try." - Babe Zaharias http://www.clicksmilies.com/s0105/musik/music-smiley-004.gif[/img]