Treadmill routines help you gain more confidence in the gym
The name may sound confusing, but the 12-3-30 Workout is straightforward
Treadmills increase the incline level by up to 12 percent
The goal of the workout is to keep your heart rate elevated by walking at a moderate pace on an incline
12-3-30 The workout was created by social media influencer Lauren Geraldo in 2019
When he shared it as a YouTube video.