Lauren Giraldo on Twitter: "Hey for those of you who do my 12,3,30 (if you're comfortable) send me your before and after pics" / Twitter
![I DID LAUREN GIRALDO'S 30 DAY TREADMILL CHALLENGE (shocking results) | Treadmill routine, Workout challenge, Challenges I DID LAUREN GIRALDO'S 30 DAY TREADMILL CHALLENGE (shocking results) | Treadmill routine, Workout challenge, Challenges](https://i.pinimg.com/originals/b0/ae/be/b0aebe2c2dec0f7f4342d658f85feb37.jpg)
I DID LAUREN GIRALDO'S 30 DAY TREADMILL CHALLENGE (shocking results) | Treadmill routine, Workout challenge, Challenges
![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
![I tried Lauren Giraldo's 12-3-30 Treadmill Workout and here's what happened...*Realistic Results* | Treadmill workout, Workout results, Workout I tried Lauren Giraldo's 12-3-30 Treadmill Workout and here's what happened...*Realistic Results* | Treadmill workout, Workout results, Workout](https://i.pinimg.com/736x/da/fc/a0/dafca086e3e1929c572020da935f40a0.jpg)