The natural physiological curves of the spinal column are formed in the first months and years of child’s development. With the raising of child’s head the first curve is made. That is a cervical curve – curve of a neck, and it is convex forward. With the first attempts to stand or with sitting the thoracic curve, the curve of the upper back, is made and it is convex backwards. When the child is old enough to stand, the lumbar curve, pointed forward, is made. In the first years of child’s life, if there are not any pre birth deficiencies, the spinal cord has its regular (normal) physiological position (Dunn 541). The future growth and development of individual vertebra is a long lasting process and in all periods of our life the vertebral column is adopting, getting stronger and adjusting with the other systems of our body and getting its definite shape. One of important factors for the development of spine is the individual behavior and lifestyle. There are many more inner and outer factors but the individual influence of them is very small. There are many postural deviations that are influencing and affecting human body. I decided to write about the spinal deviation called Kyphosis, or Rounded Upper Back. The thoracic curve is, in this case, more distinct and the back is getting rounded look. The gravity is always acting on thoracic curve, trying to get it bigger. Active and passive forces of our body like muscles, ligaments, bones etc. are fighting against it and trying to keep our spine in the physiological limits. Those physiological limits when measured by Cub method on the profile x-ray of human body, are twenty to thirty five degrees (Radisavljevic 289). With the weakening of active and passive forces or by some other causes, the kyphotic curve will get bigger and lead to Kyphosis. The Scoliosis Research Society defines Kyphosis as a curvature of a spine measuring forty-five degrees o...
