It is a lunge ballet technique

Pointe work is the part in ballet when the dancer balances their weight and body on the tips of their toes. Consequently, pointe technique is the practicing the technique of this skill.

Ballet is actually very important for contemporary technique because contemporary is a mix of ballet and modern. You need the technique of ballet and the free movement of modern. Most contemporary dancers have a lot of training in ballet. Ballet also helps with strengthening and building the right muscles needed for contemporary as well as the basic movements such as turning.

Classical Ballet technique originally developed in France during the 1600's

Technique, Musicality and Emotion :)