Advanced kettlebell HIIT combines explosive strength work with high-intensity cardio for a demanding full-body workout.

This advanced full body cardio HIIT workout delivers high-intensity training without the need for equipment. Designed to push endurance, strength, and cardiovascular capacity, the routine uses ...

Plus, the surprising benefits of turning the intensity down a notch.

Question: To challenge myself in the New Year, I plan to add more intensity to my cardio workouts. I’m not sure where to start, and how hard I should push myself? Any tips are appreciated. Answer: In ...

Combining cardio workouts such as running, rucking and swimming with other load-bearing activities is necessary for those preparing for advanced training programs in many of the military's special ...

Cardio is more than just running laps or hopping on a bike. It's any movement that gets your heart pumping, your body sweating and your energy levels soaring. Whether you're chasing a weight loss goal ...

The Internet can often be a, shall we say, messy place, but it does have its perks. One of these is providing a totally free—as in zero dollars—way to work out with top trainers without ever leaving ...

They’re so easy to incorporate into your week.

Add Yahoo as a preferred source to see more of our stories on Google. How to make treadmill workouts more exciting. (Getty Creative) (nd3000 via Getty Images) Treadmills are a staple of every gym, but ...