A theme which can be explored and expressed in a variety of different ways, existentialism is a belief based on the free will of the individual which suggests that all future development is created as a result of their own self determined actions.
People who do strengthening and toning exercises in an effort to trim fat from a certain area -- thighs, hips, stomach, or arms -- have the wrong idea. Although these exercises can help firm muscles, if the targeted area still carries an extra layer of fat, it won't look much different.
At the hips, your glutes and hamstrings contract to extend your hips for the jumping component. When you swing your legs out, your gluteus medius, gluteus minimize, tensor fasciae latae and sartorius are responsible. Bringing your legs back together are your adductors, pectineus and gracilis muscles.