Air: If you’ve ever used a rower at your gym, chances are it was an air rower. The handle in an air rower machine is attached to a flywheel that acts like a fan,
Alicia Jamison, NASM-CPT, a certified coach at
Body Space Fitness in NYC tells SELF. That fan helps to create air resistance, which increases with the force, or power, you’re producing. In other words, the faster and harder you pull the handle, the greater the air resistance you create. In this way, the air resistance automatically adjusts the speed and power as you’re rowing,
Lucy Glendinning, senior coach for Row New York, tells SELF. Some, like the
Concept 2, will allow you to adjust the airflow with a lever, typically numbered 1 to 10, which adjusts the resistance, though this isn’t present in every air model. These machines are usually smaller than water rowers, but they can get pretty noisy.