There comes a time in every runner’s life when it’s time to kick things up a notch. That means one thing and one thing only: interval training. There’s a reason loads of runners don’t like intervals.

Researchers from the University of Southern Denmark investigated how eight weeks of high-intensity interval training affect the structure of mitochondria—the parts of muscle cells that produce energy.

Eight weeks of HIIT increases both the number and efficiency of muscle mitochondria by expanding their energy-producing inner membranes.

Discover how just four minutes of supramaximal interval training can trigger powerful cardiovascular, metabolic, and ...

A research team led by Daniel Bok of the University of Zagreb, in Croatia, recruited 17 runners to do a series of three ...

Global fitness brand Barry's has opened its second studio in Atlanta, this one in the 1105 West Peachtree development in ...

A typical Tabata workout consists of 8 rounds of 20 seconds of maximum effort exercise followed by 10 seconds of rest. This totals 4 minutes per exercise.

A tool that can make run/walking even more effective, especially for athletes ready to get faster? The treadmill. Pairing ...

For competitive swimmers and triathletes, the biggest hurdle to consistent training is often access to a dedicated lap pool.

Zone 2 training is one of cycling's many buzzwords, but what actually is it, and how have the pros turned an 'easy tempo all-day' training technique into a structured and potentially race-winning ...

Michael B. Jordan tailors his diet and exercise to each new role ...