Updated 05/24/2012 05:00 AM
Tone Up: Step box
If you're just starting out, guy or girl, you need a little upper body strength. A step box can help you. Marcie Fraser demonstrates how to gain upper body strength by using a step box combined with push-ups.
To view our videos, you need to
enable JavaScript. Learn how.
install Adobe Flash 9 or above. Install now.
Then come back here and refresh the page.