The 12-3-30 Workout Took Off on Social Media
Runner’s World talks with the creator and two trainers for the inside story on this treadmill workout.
Runner’s World talks with the creator and two trainers for the inside story on this treadmill workout.
The 12-3-30 workout has gained popularity on social media, but its effectiveness for runners is still debated.
Trainers and experts weigh in on the benefits and drawbacks of this high-intensity interval training protocol.
The authors discuss the science behind the workout and its potential applications in athletic performance.