Dunno what one is.
Do an exercise in my mma class which is dropping to the floor, splaying your legs out on tip-toes, pressing the hips to the floor, and looking up at the ceiling before jumping staright back up into stance. Lots of times. And wiith legs angled to the left and then to the right, from left stance and from right stance, and with the left knee bent and the right, and both straight.
Is this a good morning? If not, what is it?
It hurts.