Hips rise — crawl becomes a caterpillar
Body must stay in a low plank; rising reduces the core demand dramatically.
Overactive muscles
Hip flexorsLatissimus dorsi
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗Body must stay in a low plank; rising reduces the core demand dramatically.
Take smaller steps; each forward roll should be controlled not a lunge.