If you are looking to knock out an intense cardio workout and build some strength at the same time, it’s hard to beat working out on a rowing machine. These devices—also known as rowing ergometers or ...

Ski erg machines are one of the lesser-known cardio machines than, say, treadmills or rowing machines, but that’s not to say they’re any less reputable. The reason you may not have heard of a ski erg ...