High-Intensity Interval Training (HIIT) has become one of the most effective fitness strategies in the United States for ...

Lack of time is often the main reason people don’t exercise regularly. But a type of interval workout recently popularised by ...

On TikTok, workout tips abound — some credible, some dubious. And recently, you may have been hearing about something called sprint training, which falls somewhere between 12-3-20 treadmill workouts ...

New research shows the 4x4 workout format can improve fitness faster than traditional workouts, such as jogging or cycling ...

High-intensity interval training (a.k.a., HIIT) is a triple threat: “It’s quick, easy, and effective,” says Angela Gargano, a certified trainer and creator of Strong Feels Good & Pull-up Revolution.

As HIIT's popularity soars, sprint interval training, or SIT, is doing its best to catch up. Can shorter, harder, faster deliver better results? As the popularity of HIIT continues to soar, sprint ...

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 ...

Raise your hand if you hated doing suicide runs during basketball practice? How about the beep test during gym class? What about 100-meter rows during crew training? My hand is raised and it's raised ...

High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

Sprint interval training leads to different adaptations in mitochondria compared to traditional endurance training Photo: Getty Images, Niels Starnick; Collage: FITBOOK How training affects cells is ...

HIIT exercise isn't for everyone and there's some evidence that you can overdo it. Here's what the experts recommend ...