If your an inline skater you might be interested in knowing that there is an inline speed team that practices out of Skatetown USA Skating Center in West Chester, OH.
The team has both competitive skaters, and well as recreational skaters.
I am primarily a recreational skater, and use it for an excellent workout. For those who measure their workouts by calories burned, I typically burn around 1500 in in 90 minute session.
For more information about the speed team visit the SkateTown web site http://www.skatetownusa.us/ and click on the Speed Team link.