The drawing-in maneuver is performed by which action?

• A. Bracing
• B. Co-Contract Superficial Core Muscles
• C. Draw the Navel Toward the Spine Without Spinal Flexion
• D. Inhale Deeply

Answer: (C)

The action being tested is drawing in the belly button toward the spine while keeping the spine from bending or flexing. This targets the deep core stabilizer, the transverse abdominis, which acts like a corset to support the lower back. By pulling the navel toward the spine without changing the spine’s curvature, you create a subtle increase in intra-abdominal pressure that stabilizes the spine during movement without unnecessary stiffness or spinal motion.

This is different from bracing, which involves tensing the entire abdominal and back musculature to rigidly stiffen the torso—useful for heavy lifting but not the focused activation of the deepest stabilizers. It’s also different from simply co-contracting superficial core muscles (like the rectus abdominis or external obliques), which can promote spinal movement or less optimal stabilization. Deep inhalation, while important for breathing, does not specifically activate the deep stabilizers in the way the draw-in maneuver does.