HIIT (High Intensity Interval Training) is a great style of training to burn fat, build toned muscle, and improve cardiovascular systems as the same time. Challenging HIIT workouts help you get to that state of EPOC and take advantage of the after-burn effect. The ability to change the resistance of the rowing machine at will means that the equipment is ideal for this method of exercise.
The rowing machine itself is unlike any other on the market with its patented water filled flywheel. It is hard to exactly copy the action of a scull on the water, but the mechanics of the flywheel spinning in water comes in a close second on dry land. The fact that the water is 800 times denser than air means that there is no need for any extra resistance or dampening that you will find in normal air rowers. The faster you pull, the more resistance is generated giving it infinite variability. However, if you want to be able to practice rowing with a faster stroke, you will have to reduce the amount of water in the tank unlike an air rower where you just have to adjust the baffle.