Rowing machines, also known as ergometers or ergs, use your upper and lower body on every stroke. This strengthens and tones your muscles and improves your endurance. Rowing can also benefit your ...

An Airdyne or upper-body ergometer. The Air-Dyne has pegs that stick out on the front wheel where you can rest your feet and push and pull with your arms. The ergometer is an upper-body bicycle ...