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The Comparison of Scapular Position in Dominant and Non-Dominant Limbs of Girls with and without Hyperkyphosis Abnormality | ||
| Sport Sciences and Health Research | ||
| مقاله 2، دوره 4، شماره 1، تیر 2012، صفحه 21-33 اصل مقاله (176.93 K) | ||
| شناسه دیجیتال (DOI): 10.22059/jsmed.2012.28970 | ||
| نویسندگان | ||
| sara Chashomi؛ Reza Rajabi | ||
| چکیده | ||
| Scapula plays an important role in producing smooth and coordinated movement of shoulder girdle. Also, a change in natural scapula position has a direct relationship with some postural abnormalities. Since in dominant limb, there are differences in the ways of environmental nerves such as higher sensory detection threshold, the conduction speed as well as side differences in muscles, the aim of the present study was to compare scapula position (protraction and upward rotation) in dominant and non-dominant sides of female university students with and without hyperkyphosis abnormality. The study method was descriptive and comparative. Subjects were selected by non-random method and they had no history of sport, pain and injury in their shoulder and spine. Then, using Iranian thoracic kyphosis degree norm, subjects were divided into two groups of hyperkyphosis and normal kyphosis (mean age 21±1.05, 21.1±1.32 yr respectively). Scapula protraction and upward rotation degree were calculated using Divta method. The results showed no significant difference in protraction and scapula upward rotation between dominant and non-dominant sides of normal kyphosis group (p=0.09, p=0.19) whereas in hyperkyphosis group, there was a significant difference between thoracic kyphosis degree and the distance of the two scapulas (r=0.37). Also, in this group, a significant difference was observed in scapula protraction between dominant and non-dominant sides (p=0.001). Although there was no significant difference in protraction and scapula upward rotation between dominant and non-dominant sides of normal kyphosis group, these values were higher in dominant side while scapula protraction was significantly higher in 1 - Corresponding – Author : Tel : 09155710676, Email : s_cheshmi@bandargaziuu.ir Journal of Faculty of Physical Education, University of Tehran 7 dominant side of hyperkyphosis group. Therefore, dominant hand might be responsible for some degrees of asymmetry of scapula position and the dominant side is more influenced by the hyperkyphosis deformity. It is recommended that in corrective exercise programs, more attention be paid to muscle imbalance in dominant limb to treat hyperkyphosis deformity. Also, normal subjects must perform the exercises to prevent scapula asymmetry and to create muscle balance in dominant limb. | ||
| کلیدواژه‌ها | ||
| Hyperkyphosis.؛ Protraction؛ Scapula Position؛ Upward Rotation | ||
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