With over 16 million workout videos sold since 1980, Kathy Smith has become a household name in fitness. A mother of two, Kathy also serves on the board of the USC School of Gerontology, the Women's Sports Foundation and is a recipient of the IDEA Lifetime Achievement Award from IDEA Health & Fitness, the world's largest professional fitness organization.

I was in St. Louis this last weekend for a family reunion. We tried to get out for a run, but when it’s 90 degrees and 100% humidity it sort of zaps your energy. At one point I actually thought I might pass out.
This is when treadmills can be your best friend. I headed to the Stayfit Gym at the Hyatt and did one of my favorite treadmill workouts, which was given to me by Ellen Abbott of the Boston Athletic Club called Double Trouble:
Imagine 2 hills. You start on the first hill at a steady state for 5 minutes. Take the incline level up to 3%, then 6%, 9%, 12%, and, if your treadmill allows it, 15%. The key is to keep your speed even as you elevate. Do 2 minutes at each incline….and then come down the other side of the “hill” (12%, then 9%, 6%, and 3%, for 2 minutes each). Give yourself a couple minutes to recover, and then climb that hill again.
Pick a walking speed you can maintain throughout the workout, and as the months go by, keep increasing your speed. Or, if you really want to crank things up….try running it.
