Relax your Back - Dynamic Majariasana Yoga Cat Pose

A simple and efficient way to relax your back: Do this simple
exercise everyday, for example after getting up or whenever your
back feels the need to relax and recharge. This dynamic version of
Hatha Yoga Asana "Majariasana", Cat Posture, can be practised
alone, or after forward or backward bends in a classical Yoga
Class. Demonstrated by Yoga Teacher and Yoga Therapist Mahashakti,
explained by Sukadev Bretz of http://www.yoga-vidya.de/english.html