Concept 2 Row Machines are an awesome tool for full body exercises. The benefits of using a rowing machine include cardio training, improved strength training, low-impact and joint friendly motion, and improved flexibility. As our bodies age, remaining flexible is a key to avoiding injury and rowing is a great way to do this.
Here are two videos on the proper way and the improper way to exercise on the Concept 2 Row Machine.
Proper Rowing Motion
Improper Rowing Motion