Over the past year, social media has become the spot to find the latest free workouts and fitness advice. One that’s been trending recently is Lauren Giraldo’s “12-3-30” workout. Although Giraldo first posted the treadmill workout on her YouTube channel in 2019, it didn’t go viral until she posted it on TikTok in November. The workout is simple—just get on a treadmill and set the incline to 12 and walk for 30 minutes at three miles per hour.
Giraldo actually came up with the workout by accident. “I’m not a runner, and running on the treadmill was not working for me,” she told Today. “I started playing around with the settings, and at the time, my gym’s treadmill had 12 incline as the max. The three miles per hour felt right, like walking, and my grandma had always told me that 30 minutes of exercise a day was all you needed. That’s how the combination started.”
The workout wasn’t easy for Giraldo and she had to work her way up to completing 30 minutes. In the beginning, she had to take a break after 10 or 15 minutes. After building her endurance and doing the workout five days a week for a couple of months, she started to really enjoy it. She actually dropped 30 pounds from it!
If you’re new to fitness, start at a level-3 incline and walk for a short period of time. Slowly build-up to the 30-minute mark before increasing the incline. To reach the full workout, it could take anywhere from several weeks to a few months.
Are you ready to get started?
