Pilates

Arc Barrel Back Extension

The Arc Barrel Back Extension is a supported Pilates movement that trains your back extensors while your glutes and hamstrings help keep your hips steady.

  • Beginner
  • Isolation
  • Low injury risk
  • Rest 45 sec

How to do it

  1. Lie face down over the barrel with your pelvis and lower ribs supported, legs extended, and toes resting on the floor.
  2. Place your arms alongside your body with palms facing your thighs.
  3. Lift your chest slightly away from the barrel, reaching the crown of your head forward.
  4. Lower your chest slowly back onto the barrel.

Form cues

  • Gently draw your lower belly inward.
  • Keep your neck in line with your spine.
  • Let your shoulders stay away from your ears.
  • Keep breathing throughout the movement.

Common mistakes

  • Chasing heightUse a smaller lift that spreads the curve through your back rather than creating a sharp bend at your waist.
  • Rocking through the hipsKeep your pelvis resting against the barrel throughout the repetition.
  • Throwing the chest upwardStart the lift gradually instead of using momentum to leave the support.

Safety

Forcing the backbend can strain or irritate your lower back, especially as you tire. A sliding or tipping barrel can cause you to lose support.

  • Place the barrel on a level, nonslip surface and check that it stays stable under your weight.
  • Stop if you feel pinching or sharp pain in your back.
  • End the set when you can no longer control the lowering phase.

If you have ongoing back or neck pain, ask a physiotherapist or doctor whether supported back extension is appropriate before trying it.

Muscles worked

Back

Primary muscles

  • Glutes
  • Lower Back

Secondary muscles

  • Hamstrings
  • Rear Delts

Equipment

  • Pilates Arc Barrel

Sets and reps

Sets
2–3
Target
8–12 reps
Rest
45 sec

Begin with fewer repetitions if maintaining a smooth movement is difficult.