Rowing machines work on a large group of muscles. Hence, during a rowing machine exercise, significant effort is placed by the thighs, hips, torso, and the pelvis to perform it. This way, while exercising with a rowing machine, the whole body gets toned. While exercising on a rowing machine, a significant amount of resistance is placed on the upper body muscles. Another great benefit of the rowing machine is that it helps to strengthen the core or abdominal muscles. The rigorous movement of the body on a rowing machine can help burn about 800 calories in an hour. A rowing machine is very soft on the various joints in the body since it is a low impact machine. As such, even the elderly can benefit a lot from rowing machine exercises. Rowers are relatively small machines, take up very little space and can be stored easily.