Verstijvingsintensiteit 4/5

Vagus nerve and sideration: understanding the link

The vagus nerve orchestrates sideration. Its dorsal branch (evolutionarily oldest) triggers survival immobility. Its ventral branch (newer) handles calm and social connection. Training strengthens the ventral branch.

Waarom dit gebeurt — het mechanisme

Polyvagal Theory (Porges 1994): 3 levels of autonomic nervous system — ventral vagal (social calm), sympathetic (fight/flight), dorsal vagal (sideration). Under extreme threat the order is: ventral → sympathetic → dorsal. Training goal: climb back up instead of down.

Hoe het Avikzar-Systeem hierop antwoordt

Yehouda teaches 'vagal reset': coherent breathing (5 breaths/min) at session start, jaw stretches, vocal sounds. All tones the ventral vagal and shortens recovery time after stress.

Yehouda Avikzar (10e Dan) — De freeze is niet uw schuld — het is uw biologie. Maar trainen na er een te hebben beleefd, dat is uw verantwoordelijkheid.