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 ...

There are approximately a zillion ways to get your cardio in nowadays. Walking, running, cycling, stairclimbing, rowing, skiing, swimming – the list goes on. You understand the importance of cardio, ...