Horizon Fitness - You've likely heard of the 12-3-30 treadmill workout craze. What is it, exactly? 12% Incline 3.0 MPH Speed 30 Minutes It's easy enough to not be intimidating, but challenging
Once I found out about 12-3-30, I NEVER looked back. A HUGE challenge and a great sweat. 💦 I’ll challenge myself to let go of the rails for one minute and hold on the next alternating the entire way ...
![Everything You Need To Know About The Viral 12-3-30 Treadmill Workout On TikTok - Women's Health Australia Everything You Need To Know About The Viral 12-3-30 Treadmill Workout On TikTok - Women's Health Australia](https://womenshealth.com.au/wp-content/uploads/2022/03/treadmill.jpg)