![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 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](https://pbs.twimg.com/media/EHWvdqRWkAEHR7o.jpg)
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
Check out this 12-3-30 #workout idea. Let us know if you give it a try in the comments below! #precor #cardio #workoutmotivation | By Precor Incorporated | Facebook
![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)