الفهرس 
Assessment of relation between mechanical neck pain and ventilatory functions in smartphone addicted population
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Abstract
Background: Mechanical neck pain seen in smartphone addicted population causes respiratory hazards and decrease in ventilatory functions.
Aim: To detect the effect of mechanical neck pain on ventilatory functions in smartphone addicted population.
Methods: 100 volunteers of smartphone addicts with mechanical neck pain were recruited from delta university for science and technology. Their age ranged from 18-25 years. Both sexes were included (47 males, 53 females). Their ventilatory functions (FVC, FEV1, FEV1/FVC, PEF) were measured using spirometer and the results were compared to the normal predicted values based on age, sex, race, weight and height
Results: there was a significant decrease in FVC, FEV1 and PEF in smartphone addicts with mechanical neck pain compared to normal predicted values. There was non-significant decrease in FEV1/FVC compared to predicted values.
Conclusion: Mechanical neck pain causes decrease in ventilatory functions in smartphone addicted population