Create a 15-minute core workout that is generally back-friendly, for a [beginner / intermediate]. Focus on stability exercises (e.g. dead bugs, bird dogs, side planks) rather than lots of crunches. For each: how to do it, cues, reps/time, and an easier version. Add a progression for 4 weeks. I'm not asking for medical…
Health & Fitness
Back-friendly core workout
Build a strong, stable core with exercises that are generally gentle on the lower back.