If you're finding the normal push up ie knees of the ground ladies!
easy then its time to push yourself a little bit more with this
next step.
1. Start with one hand on the ball and the other arm on the ground
and do push up.
2 and 3. At top position, roll the ball over to the other
hand
4. Do a push up, then roll back to the starting hand.
Repeat 10 times.