Underwater running time! I felt like Pamela Anderson, floating along the beach in slow motion…well, minus her famous upper body bounce. I had just stepped on an underwater treadmill at LiquidGym, an underwater gym, and with the belt turning at a slow jogging pace, I bounced slowly up and down as I floated between foot strikes. “Try not to bounce,” said Katie, my personal exercise physiologist for the session. Right, I was supposed to be running. With my Baywatch attitude in c