Contemporary dance is an artistic expression based on classical ballet's technique, but which comprises not-so-rigid movements. It was born as a reaction to the classical forms and probably as a need to more freely express an idea, a feeling or an emotion--just like in classical ballet but with corporal movements typical from the 20th and 21st centuries. The pioneer was I. Duncan, followed by M. Graham, and R. St. Denis, among others. The aims are: to develop the physical potential of each dancer respecting their limits and acting from relaxation and correct body alignment all while maintaining the goal of avoiding pain and harmful corporal habits. The technique is based on work with the body's weight, the correct use of the floor and flexibility. This is achieved by different exercices and choreographies, as the main goal remains the expression of an emotion through the body.