This machine is one of the best ways to push yourself. These 5 workouts can help you level-up your conditioning.

Anyone who’s jumped on an air bike and put the pedal to the metal will know this cardio machine is a nasty piece of work. It batters your arms, legs and lungs—leaving you feeling like a lactic-filled ...

In a new video on his YouTube channel, former World's Strongest Man turned boxing up-and-comer Hafthor Bjornsson, aka Thor, aka The Mountain, takes on one of his most grueling cardio workouts yet.

There are approximately a zillion ways to get your cardio in nowadays. Walking, running, biking, stair climbing, rowing, skiing, swimming—the list goes on. You understand the importance of cardio, but ...

Cardio machines are a lot like dogs. Some are loyal companions you’ll love forever. Others? They’ll chase you down and leave you gasping for air. Few tools in the gym spark more debate than the SkiErg ...