02/26/2026
Accessory Nerve Floss (CN XI) 🧠➡️💪
The accessory nerve helps power the upper trapezius and sternocleidomastoid — two key muscles for neck stability, shoulder elevation, and head control. When this nerve becomes irritated or restricted, it can contribute to neck tightness, trap fatigue, shoulder heaviness, and even movement compensation patterns.
Accessory nerve flossing is a gentle neurodynamic drill designed to improve the nerve’s mobility and reduce sensitivity within its pathway.
How to perform:1️⃣ Sit tall and gently shrug one shoulder upward.2️⃣ At the same time, turn your head away from that shoulder.3️⃣ Then lower the shoulder while bringing your head back to neutral.4️⃣ Move slowly and rhythmically for 8–10 reps, staying in a comfortable range.
This drill may help with:✅ Upper trap tension or fatigue✅ Neck stiffness and limited rotation✅ Postural overload from desk work✅ Shoulder heaviness or guarding patterns✅ Athletes with trap inhibition or asymmetry
Think of this as “motion for the nerve” — restoring communication between brain, nerve, and muscle.
👉 Move slow. Stay comfortable. Consistency beats intensity.