![I tried Lauren Giraldo's 12-3-30 Treadmill Workout and here's what happened...*Realistic Results* - YouTube I tried Lauren Giraldo's 12-3-30 Treadmill Workout and here's what happened...*Realistic Results* - YouTube](https://i.ytimg.com/vi/W3gJb4RS_zI/maxresdefault.jpg)
I tried Lauren Giraldo's 12-3-30 Treadmill Workout and here's what happened...*Realistic Results* - YouTube
![Personal trainer reveals whether low-impact '12-3-30' workout is really beneficial | Daily Mail Online Personal trainer reveals whether low-impact '12-3-30' workout is really beneficial | Daily Mail Online](https://i.dailymail.co.uk/1s/2022/02/21/19/54471907-10536191-Influencer_and_former_Premier_League_injury_expert_Arun_Gray_try-a-35_1645472403653.jpg)
Personal trainer reveals whether low-impact '12-3-30' workout is really beneficial | Daily Mail Online
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
![I Tried Lauren Giraldo's 12-3-30 Treadmill Workout for a MONTH & Here are My REALISTIC Results! - YouTube I Tried Lauren Giraldo's 12-3-30 Treadmill Workout for a MONTH & Here are My REALISTIC Results! - YouTube](https://i.ytimg.com/vi/JiA-IPCvsg4/maxresdefault.jpg)
I Tried Lauren Giraldo's 12-3-30 Treadmill Workout for a MONTH & Here are My REALISTIC Results! - YouTube
![Personal trainer reveals whether low-impact '12-3-30' workout is really beneficial | Daily Mail Online Personal trainer reveals whether low-impact '12-3-30' workout is really beneficial | Daily Mail Online](https://i.dailymail.co.uk/1s/2022/02/21/19/54472451-0-image-a-42_1645472706114.jpg)