When my circus and aerial skills instructor showed this technique to me, she called it a 'front planche on a rope'. The name seems a little misguiding to me -and I am not sure it is even the common name for this move- but for want of a better one, I have kept it here...
The technique itself is not terribly hard -maybe of an intermediate level- and it relies more on skill than brute muscle power. It does require a fair amount of core strength however, and -as you can see from the picture- some straight arm and bent arm pulling strength.
