Also known as: spinal roll, weighted spinal roll, standing spinal flexion, barbell spine roll, spine roll

What is Jefferson Curl?

The Jefferson Curl is an easy mobility exercise that involves slowly rounding and uncurling the spine to improve hamstring, glute and back flexibility and control. It targets the posterior chain and spinal segments; perform slowly with a tucked chin and controlled breathing to reduce injury risk.

How to Do Jefferson Curl

  1. Set stance: Stand with feet together, knees soft and weight held in hands or bodyweight; keep shoulders relaxed and core braced.
  2. Tuck chin: Tuck your chin to your chest and begin to round the spine slowly, initiating movement from the upper cervical area.
  3. Curl vertebrae: Continue rounding one vertebra at a time, letting the weight pull you toward the floor while breathing steadily and maintaining balance on the balls of your feet.
  4. Hold bottom: Pause briefly at the bottom with a uniform spinal curve, pull belly button toward spine to protect the lumbar area and avoid sharp end-range pain.
  5. Uncurl slowly: Reverse the movement by uncurling the spine starting from the low back, keep the chin tucked until upright and exhale as you stand.

Muscle Groups

Hamstring, Glutes, Back

Description

Start by standing straight with your legs together. Preferably a weight in your hands, for example a barbell, dumbbell, kettlebell or any other weight.

Begin the movement by tucking your chin into your chest. Then, slowly continue to round your back one vertebrae at a time. As you curl, feel the weight "pull" you lower towards the floor. Stay balanced on the balls of your feet to keep from leaning back.

Your entire spine should have one uniform curve to it at the bottom. Focus on pulling your belly button into your spine. Remember to breathe normally throughout the movement.

Reverse the movement by uncurling the spine beginning with the low back first. Keep your chin tucked into your chest the whole time. When you are standing up all the way, finally extend your neck straight.

Repeat for the required amount of repetitions.
Movement Group: Mobility
Equipment: None (bodyweight only)

Progressions and Regressions

None

Frequently Asked Questions

What are the benefits of the Jefferson Curl?

Improves spinal segmental mobility, hamstring and glute flexibility, and posterior chain control. Regular practice builds eccentric control of the back and can reduce stiffness when performed with proper technique.

What common mistakes should I avoid?

Rushing the movement, holding your breath, extending the neck too early, and forcing range beyond comfort are common. Maintain a tucked chin, slow tempo, and stop if you feel sharp pain.

How can I progress or regress the Jefferson Curl?

Regress by using no weight, reducing range, or doing seated spine rolls. Progress by adding light weight, increasing slow eccentric control, or pairing with Romanian deadlifts for strength.