Which muscles are considered deep stabilizers targeted in core stabilization for spinal rehab?

• A. Latissimus dorsi and gluteus maximus
• B. Psoas major and iliacus
• C. Transversus abdominis and multifidus
• D. Rectus abdominis and external obliques

Answer: (C)

In core stabilization for spinal rehab, the focus is on deep local stabilizers that control vertebral segments rather than move large amounts of mass. The two primary deep stabilizers are the transverse abdominis and the multifidus. The transverse abdominis acts like a natural corset, increasing intra-abdominal pressure and bracing the lumbar spine to stiffen and stabilize the spine from within. The multifidus runs along the spine and provides precise, segment-by-segment control of vertebral motion, helping to maintain a neutral spine during movement. Together, they establish a stable foundation that allows the spine to withstand stresses during movement and rehabilitation exercises.

The other muscles listed are more about gross movement or global stabilization. The latissimus dorsi and gluteus maximus are large superficial movers involved in pulling and hip extension, not focused on fine, segmental spine stability. The psoas major and iliacus are deep hip flexors that cross the lumbar region and influence pelvic and spinal posture, but they’re primarily discussed as hip-spine movers rather than the key deep stabilizers. The rectus abdominis and external obliques are superficial abdominal muscles that contribute to bending and rotational movements, not the focused segmental stabilization provided by the transverse abdominis and multifidus.

So the best answer highlights the deep stabilizers: transverse abdominis and multifidus.