A bouncing ball goes up and down, the height decreases each bounce until it stops. As the ball moved some of the energy was used to push the air aside and some was converted into heat as the ball hit the floor.In a standing position the head has more energy that the feet because the distance to ‘fall’ in the floor is more . When we go up and down, that small movement it is a kinetic energy when we contract the muscles and potential energy when we release.
When done correctly, the plié enables participants to perform transitions, jumps, balances and turns. Understanding how the body works to produce the most efficient movements is key to improving technique, use better the body and burst the metabolism. Since the mind controls the body, change has to first happen in the brain to be permanent—in the way you feel, picture and experience the movement. Imagery allows you to improve control of your body.
Changes that happen in the pelvis during a plié are essential for maintaining alignment and turnout without gripping or forcing the joints. The human pelvis is designed to be elastic and respond to the movement of the legs and spine. Holding the pelvis rigid and tightening muscles increases tension, making movement more difficult and the body prone to injury.
1- Kneecap floating away from the femur in the same direction, the movement start from the hips and not from the knee, the knee cap floats perpendicular away from the femur as you extend the knee;
2- When we can up from the plies we need to imagine a extension of a space behind your knee cap;
3- Visualise the iliopsoas (the muscle from the hip to the knee) and see how it drop forward to become horizontal to the floor.
This small movement produces a fast and fantastic result if it is performed properly. The contraction and release of the muscles will sculpt the legs.