Smart Workout Diary

Stability Ball Back Extension

The stability ball back extension is a bodyweight hip and spinal extension exercise performed face-down over a stability ball. It primarily trains the lower back while also engaging the glutes and hamstrings to support posture, trunk control, and posterior-chain strength.

Demonstration

Stability Ball Back Extension — demonstration 1
Stability Ball Back Extension — demonstration 2

Instructions

  1. Set up the ball: Place a stability ball on a non-slip surface and lie face-down over it, with the ball supporting your hips and lower abdomen.
  2. Secure your stance: Place your feet apart with the toes or soles braced against a wall, or keep them firmly on the floor. Cross your arms over your chest or place your hands lightly beside your head.
  3. Find a neutral start: Brace your abdominal muscles and let your torso lower toward the ball with your neck in line with your spine.
  4. Extend with control: Squeeze your glutes and raise your torso until your body forms a straight line from head through hips. Keep the movement smooth and avoid forcing your lower back into an exaggerated arch.
  5. Lower and repeat: Slowly return to the starting position while maintaining control. Stop the set if you cannot keep the ball stable or feel sharp discomfort.
Muscle Group
Lower Back
Other Muscle Groups
Glutes, Hamstrings
Type
Strength
Mechanics
Compound
Equipment
Exercise Ball
Difficulty
Intermediate

Technique tips

  1. Prioritize stability: Brace your feet securely and use a ball size that lets you control the movement without rolling.
  2. Move from the hips: Think about squeezing the glutes to lift rather than simply bending and arching through the lower back.
  3. Keep the range comfortable: Finish when your torso aligns with your hips; higher is not better if it causes lumbar compression or loss of control.
Exercise library