Better Pushups?

Scientists from New Zealand studied people who performed push-ups on a Swiss-ball instead on the floor. What they determined was that doing this exercise with this particular equipment made the triceps work 30 percent more than the regular push-ups.

The reason is it takes a lot more work for the triceps to do all the stabilization work, which ultimately leads to involving more muscle fibers into the movement. The bigger percentage of the muscle recruited, the better the chances for strength and muscle growth.