02/23/2026
Your lower back is the powerhouse that keeps your spine supported and your movements strong. It’s made up of a group of muscles that work quietly behind the scenes, helping you bend, twist, lift, and stand tall every day. Understanding these muscles can help you move smarter and prevent pain.
Erector Spinae: Long muscles running along your spine. They let you straighten up, bend backward, and stay upright.
Multifidus: Tiny stabilizers along your spine that help hold each vertebra steady during movement.
Quadratus Lumborum (QL): Deep muscles on the sides of your lower back. They help you bend sideways and stabilize your hips.
Lower Latissimus Dorsi: Assists in lifting and pulling while supporting your lower spine.
Gluteus Maximus (bonus!): Works with your lower back to extend your hips and maintain posture.