Mobility · Baseline Mobility
Jefferson Curl
Posterior chain flexibility, spinal articulation under load
Minimum Effective Dose
1 min
The shortest time that still creates real, measurable change. Hit the dose and the benefit starts. Everything after is bonus.
Why it works
The Jefferson curl builds loaded flexibility through the entire posterior chain, including the hamstrings, glutes, and every segment of the spine. Unlike a static toe touch, it trains your nervous system to trust end-range positions under control.
How to do it
One vertebra at a time.
Exhale as you roll down. No bounce, no yank. Controlled sequencing only. The return is the same: one vertebra at a time back up.
- Stand on a step or flat ground with feet together, arms hanging
- Tuck your chin and roll down one vertebra at a time. Exhale as you go
- Reverse the motion, stacking each vertebra back up from the bottom
- The return journey is identical: sequential, controlled, slow
Variants
Easier
Shorten the range.
Stop above discomfort. Control the descent. No stretch chasing.
Harder
Full range. Slow tempo.
Touch toes if earned. Same control. No bounce.
Related exercises
Pair with breathwork
Wind down after your session with a Shift breathwork protocol.
Baseline builds this into your session automatically.
The system decides what you need, sequences the exercises, and runs the timers. All you do is press start.
Launching May 2026 · Free to try
