Walking treadmill workouts are an easy way to jumpstart a new fitness routine or add variety to an established one. One of the most popular routines is the 12-3-30 treadmill workout, which continues ...

When you walk into a gym in the new year and spot a person walking steadily on the treadmill at a very high incline, they could be following a viral workout trend. The "12-3-30" workout, the ...

Tabata is designed to push your limits, and this 30-minute workout is no exception. For anyone new to Tabata, it's basically a more intense form of HIIT, alternating between bursts of high-intensity ...

WASHINGTON - TikTok's latest treadmill obsession skips the sprinting and sticks to something much simpler: walking - at a steep incline. The 12-3-30 workout has exploded in popularity thanks to its ...

A fitness trend that took TikTok by storm, racking up more than 14 million views, may have some science behind it. The 12-3-30 treadmill workout, popularized by influencer Lauren Giraldo, promises a ...

Picture this: It’s frigid outside, and your motivation to lace up your trainers is as low as the thermostat on this winter morning. Well, this indoor walking workout is about to warm up your body (and ...

Presented by Athleta, this HIIT workout is basically a guaranteed confidence boost. Celebrity trainer Amanda Butler leads you through two different rounds of full-body interval training, helping you ...

When a heat wave hits, it's time to move indoors, and doing a treadmill workout can be fun and effective. The 12-3-30 treadmill workout continues to be a favorite among workout trends since it went ...