WHEN IT comes to your fitness routine, it's nice to switch things up. For a workout that is low-impact (a.k.a. joint-friendly) but has a high payoff, consider an indoor rowing machine. It might just ...

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 ...