The neck remembers. Whiplash isn’t only car wrecks. It is the headstand that came down crooked. It is the jiu-jitsu round you should not have rolled through. It is the bike crash six months ago that everyone agreed was no big deal. And it is, statistically, the injury most likely to quietly become chronic if the first six weeks are spent on the couch.
Rest fails. Soft collars fail. What works is graded movement, deep neck flexor capacity, and a sensorimotor layer most rehab quietly skips.
🛠️ The Sagittal Plane Comes First
Whiplash is a sagittal-plane injury — head whips forward, then back, or the reverse. The visible six-week-later symptoms often show up in rotation, but the root deficit lives in flexion and extension. Specifically: the deep flexors (longus colli, longus capitis) won’t fire on demand, and the proprioceptive system has lost the small, constant work of keeping the head over the body. Train the sagittal layer first. Rotation comes back when the substrate it sits on has capacity again.
🌱 Three Phases, Two Traditions
The full Tech Support article walks the three phases — acute (0–14 days), subacute (14–42 days, the critical window), remodeling (42 days+) — using drills pulled from PNF (contract-relax for sagittal range) and FRC (Neck CARs as joint hygiene, cervical PAILs/RAILs for end-range capacity). Fourteen referenced videos, including Kelly Starrett on the forward-head pattern most whiplash patients land in by week 6 of healing.
⚖️ Train What Doesn’t Show
The yogic framing here is sūkṣma — the subtle. The deep flexors are sub-perceptible structures doing load-bearing work, the same way mūla bandha and uddiyāna bandha are. Whiplash recovery is, in part, the practice of training what you cannot see and cannot feel directly until you have trained it long enough that it answers when called. Patience and dosing.
If you have acute trauma, neuro symptoms, or any of the Canadian C-Spine red flags listed in the Tech Support piece — stop here, see a clinician first.