What is a Slumper?
Most Slumpers think they just need to sit up straight and hold better posture. But for your back type, sitting up isn't the problem — it's that your supporting muscles can't hold it, so upright never lasts.
Your supporting muscles have been slumped for so long they've forgotten how to work well in any other position. When you sit up, they're working at a shortened length they're no longer set up for — and they fatigue within minutes. Once they give out, the load drops onto your joints, ligaments, and fascia which weren't built to hold you up alone. That's where the heaviness, the ache, and the pull back into collapse come from. The Slumper program targets what the pattern has taken — muscle length, breathing mechanics, and postural endurance.
This is the approach the research points to — the evidence on chronic back pain supports exercise-led, movement-based methods for long-term change.