Hips sag during circles
Anterior core loses tension as the arms move.
Overactive muscles
Hip flexorsErector spinae
Corrective work
Foam RollHip flexors↗Foam RollErector spinae↗StretchHalf-kneeling hip flexor stretch↗Anterior core loses tension as the arms move.
Lateral core fails; hips shift with the arm circles.
Upper traps brace instead of the core.