الفهرس 
Effect of smartphone extensive usage and gender on cervical angle
Abstract EnglishOnly 14 pages are availabe for public view
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Abstract
Purpose: The purpose of this study was to investigate the effect of smartphone extensive usage on the measurement of cervical angle, and mechanical neck function in both male and female subjects. Subjects: Thirty normal subjects were included in this study, with mean age (19.66±0.61),mean BMI (23.82±0.54), mean weight (62.6±1.63),mean height (162.06±1.66) in female group and mean age (20.13±0.74), mean BMI (23.82±0.43), mean weight (72.13±1.5), mean height (174±1.36) in male group, divided into two equal groups male and female. With no continuous neck pain (three months) prior to the study and used the smart phone more than four hours per day. Methods: Neck Disability Index was used for assessment of mechanical neck function and kinovea open access software used for measurement of cervical angle. The cervical angle was measured at five, ten and fifteen minutes after starting using smart phones. Results: The analysis of data revealed the following finding: There was no significant difference of cervical angle measurement (after five min Vs. after 10 min), (after five min Vs. after 15 min) and (after 10 min Vs. after 15 min) with in each group, as well as the mean values of the ”after five min” test between both groups showed no significant differences. As well as, there was no significant difference of the mean values of the ”after 10 min” test between both groups. Additionally, there was no significant difference of the mean values of the ”after 15 min” test between both groups. there was significant difference in Neck Disability Index with female group affected more than male group