Stærk Kerne Videokursus

I was skeptical that 15 minutes a day could do anything, but by day ten my lower back felt noticeably more stable during my morning runs. The 28-day structure kept me accountable without feeling like a chore.

I’ve got a bad back from sitting at a desk all day, and these short daily workouts have been a lifesaver—the 28-day plan keeps me on track without needing more than a few minutes each morning. The moves are easy to follow for a beginner like me, and I already feel more stability in my core.

The daily 28-day structure is exactly what I needed—each workout is short enough that I actually stick with it, even after work. My lower back already feels more stable during everyday tasks, which surprised me for just a few weeks in.