15/08/2026
⚡ Why can SI-region pain suddenly increase when you load one leg?
Walking, climbing stairs, standing on one side, or turning can shift forces through the pelvis and change how the sacrum, SI joints, hips, and surrounding muscles share load.
But here’s the important part:
❌ Pain during one movement does not prove your SI joint is the problem.
The lumbar spine, hip joints, facet joints, and nerves can create symptoms in similar areas.
🎥 Full biomechanics breakdown drops in 90 minutes.
