Smartphone Addiction, Posture and Breathing Control in University Students

The aim of this study is to investigate the effects of smartphone addiction on postural problems and breathing control in healthy university students. Excessive smartphone use has been associated with forward head posture, thoracic postural changes, and musculoskeletal complaints. These postural alterations may negatively influence respiratory biomechanics and breathing control. However, the relationship between smartphone addiction, postural deterioration, and dysfunctional breathing symptoms has not been comprehensively investigated. Participants will complete questionnaires assessing smartphone addiction and breathing control, and posture will be evaluated using the New York Posture Rating Chart. Binary logistic regression analysis will be performed to determine whether smartphone addiction independently predicts postural problems. Additionally, multiple linear regression analyses will be conducted to examine the association between smartphone addiction, posture, and breathing control.

NCT Number	NCT07615322
Lead Sponsor	Istanbul Medeniyet University
Conditions	Smartphone Addiction, Postural Disorders, Dysfunctional Breathing
Enrollment	300 participants
Start Date	2026-04-05
Primary Completion	2026-06-05 (estimated)
Study Completion	2026-06-20 (estimated)
Updated on ClinicalTrials.gov	2026-05-29