Join celebrity trainer Erin Oprea for a leg-focused HIIT workout. Erin introduces tabata circuits with sumo squats, pushups and floor dips to keep the workout moving at a fast pace. Trump, 79, Feuds ...

Everything you need to know about high-intensity interval training to help you hit the ground running in 2026—including a low ...

It’s a type of high-intensity interval training workout created by Japanese scientist Izumi Tabata. Like other forms of HIIT, it involves periods of exercising intensely with an elevated heart rate, ...

We love the Sweat app for the heart-pumping, sweat-inducing HIIT workouts it offers. But the high-impact moves like burpees and jump squats aren't for everyone, especially if you have joint pain or ...

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