Similar to interval training in that you have a longer bust of tough exercise and then rest periods to bring your heart rate down. (liftingrevolution.com)
The roller is a versatile tool that will help you get more out of your workouts through increasing your flexibility and decreasing the soreness that occurs after tough exercise bouts. (thebettyrocker.com)
This makes for a VERY tough exercise with great tension on the biceps through the whole range of motion. (fitstep.com)