I ditched cardio for HIIT workouts for 30 days. The shocking results transformed my fitness, energy, and body. Discover all ...

“HIIT training is extremely efficient. Many people don’t have the time for long, drawn-out workouts and HIIT training is ...

With so many fitness classes on the market, it can be tough to know where to invest your time and money. Whether you're ...

Pushing your body to its limits is the latest workout trend – here’s how to sprint safely. As the name suggests, it involves intervals of work and rest. “SIT is a derivative of HIIT ...

This article was medically reviewed by Joey Thurman, CSCS, CPT, FNS, a Chicago-based fitness expert and creator of Fast Results program. HIIT workouts, or high-intensity interval training ...

We've put together the best cardio HIIT workouts from running to bodyweight conditioning to strength training to build muscle and burn fat. To give you some diversity, we've pooled together a list ...

HIIT, or high-intensity interval training, is increasingly popular, and it provides plenty of benefits, from torching calories to increasing your VO2 max and overall athletic performance. SIT, or ...

VO2 max is a measure of your body’s efficiency in delivering oxygen and nutrients to tissues, including your brain, explains ...

For his 2006 study, participants were placed into two groups: sprint interval training and moderate intensity exercise. The sprint group spent around 25 minutes per session training, while the ...

As the name suggests, HIIT is all about alternating short bursts of intense exercise with periods of rest or low-intensity ...