Overview
The inversion family takes the spine over the head: from a supine start the hips roll up into a shoulder stand, then the legs and spine travel over in a controlled arc. These are the most demanding articulation exercises in the classical repertoire — the weight must rest on the upper back and shoulders, never the neck.
The family:
- Jackknife: hips roll up and over the head into a shoulder stand, then the legs lower over the head.
- Boomerang: from a seated V the body rolls over the shoulder blades, the legs sweep up and over, and the sequence returns forward.
- Control Balance: the spine rolls up to a vertical balance, the legs open wide and close, then the roll-down.
- Roll Over: the classical overhead articulation, the legs taken over and lowered behind the head with the roll-down under control.
- Long Spine Massage: the same roll-over with the legs straight and vertical in the straps, so the spine travels through its whole range with no knee bend to shorten the lever.
Setup
- Jackknife and Control Balance: a light setting (1 medium spring); footbar down, headrest down. Supine with the legs extended to the ceiling (feet in the long straps for Control Balance).
- Boomerang: light (1 medium or 1 light spring); footbar down. Seated with the feet in the long straps.
- Arms long by the sides, hands pressing the carriage for stability.
Key Teaching Cues
- Roll over the shoulder blades, never the neck — the weight stays on the upper back.
- Articulate the spine one vertebra at a time on both the lift and the return; no swinging or momentum.
- Stack the hips over the shoulders in the balance; keep the legs long.
- Exhale to lift and roll, inhale to hold, exhale to return.
Common Faults
- Loading the cervical spine by tipping over the neck.
- Jumping into the shoulder stand instead of peeling through the spine.
- Letting the legs drift off the vertical line in the balance.
- Rushing the roll-down and dumping the spine.
Variations
- Regression: bent knees (Jackknife), lift only (Boomerang), supported roll-up (Control Balance).
- Progression: extended holds, wider V, slower tempos.
- Safety: screen for cervical sensitivity and osteoporosis before programming — inversion is contraindicated for both. Keep the head supported and skip if there is any neck compromise.