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What is the 12-3-30 treadmill trick talking about?
The new favorite fitness trend of the Internet is not running or picking up – it is walking. But just no one walks. The 12-3-30 treadmill trick is simple, spicy and stunning sweaty. Why is everyone thinking about it from those who affect curious to sofa potatoes? Lease on your sneakers – this viral cardio hack can simply change your game.

12-3-30 Treadmill Trick (Credit: Paxal)
There are a lot of things in the community, especially after Kovid -19, with a newly taken on fitness and health with the world. The latest bee that is fluttering around is 12-3-30 treadmill tricks. But what is it really and why is the Instagram fitness community swooping on it? Let’s break it.
Concept of 12-3-30?
The number may look misleading, but it is very simple:
- Set your treadmill to 12%
- Set the speed at a speed of 3 mph (this is a sharp walk)
- Walk for 30 minutes
And Boom-You have just done 12-3-30 workouts.

Who cracked the code for 12-3-30?
All credit fitness goes to influential Lauren Girldo, who first posted about this trick in 2019 (yes, even before Kovid -19). But it only started circling when he carelessly mentioned how this treadmill trick is super easy and helped him fall by 30 pounds. He also talked about how this simple trick changed the whole relationship with fitness. Rapid forward, and now millions of people are giving it – because it is appropriate.
Why is everyone obsessed with it?
Because it is super easy, super fun and does not feel like torture to be honest. There is no difficult posture, there is no endless barp, no jumping jack that questions you from every pizza that you have ever eaten. You just have to keep walking on an inclination for a change, and it burn all the cardio without a huge impact. And this trick helps you feel burning in your lower body – from glutes to calves and hamstrings. And trust us, your heart is going to thank you too!

How does 12-3-30 do magic?
This is power training and cardio is rolled into one. You can forget everything about HIIT and at the same time keep the dumbball line separate. The tilt helps to activate the muscles of the foot over a flat walk and the stable speed helps you stay in the fat-water area. Mix it with a balanced diet, and yes – it can support weight loss, increase stamina, and even improve your mood (hello, endorphin!).
Who is this best?
People new for fitness
Any person recovering from injuries
Busy bees who want a quick, skilled workout
final thoughts
The 12-3-30 treadmill trick works best as a permanent way to move your body, especially if you are someone who feels afraid of traditional gym workouts. It is simple, effective, and this fitness community is approved.
So the next time you collide with a treadmill, a go on 12-3-30. Just don’t forget your water bottle, a great playlist, and perhaps … a towel. You will sweat more than what you think.
Trick trickHealthSuitablenessCardioTreadmillWalking12330