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 ...

A sports medicine physician shares potential benefits of viral 12-3-30 workout. When you walk into a gym in the new year and spot a person walking steadily on the treadmill at a very high incline, ...

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 ...

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 ...