Smartphone Addiction, Posture and Breathing Control in University Students
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In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Observational Assessment.
- Who it may be relevant to
- Registry conditions: Smartphone Addiction, Postural Disorders, Dysfunctional Breathing. Basic parameters: 18 years — 35 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Effects of Smartphone Addiction on Posture and Breathing Control in University Students: The Role of Physical Activity and Demographic Factors
Overview
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.
Detailed description
This cross-sectional observational study will be conducted between April and September 2026 in healthy university students aged 18-35 years.
Following written informed consent, participants will complete a sociodemographic form including age, sex, body mass index, smoking status, and daily smartphone usage duration.
Smartphone addiction levels will be evaluated using the Smartphone Addiction Scale-Short Form (SAS-SV). Breathing control and dysfunctional breathing symptoms will be assessed using the Self Evaluation of Breathing Questionnaire (SEBQ). Postural assessment will be performed using the New York Posture Rating Chart (NYPRC).
Participants will additionally be categorized according to smartphone addiction status using validated cutoff values for the SAS-SV. Postural status will also be categorized according to NYPRC scores.
Binary logistic regression analysis will be performed to determine whether smartphone addiction is an independent predictor of postural problems. Odds ratios (OR) and 95% confidence intervals (CI) will be reported. Multiple linear regression analysis will additionally be used to examine the relationship between smartphone addiction, posture scores, and breathing control scores while adjusting for potential confounding factors such as age, sex, body mass index, smoking status, and smartphone usage duration.
The study aims to provide evidence regarding the musculoskeletal and respiratory consequences of excessive smartphone use in young adults.
Interventions
- Other Observational Assessment
Participants will complete questionnaires assessing smartphone addiction, physical activity level, and breathing control. Postural assessment will be performed using the New York Posture Rating Chart. The study will investigate the association between smartphone addiction, postural problems, and breathing control in university students.
Primary outcome measures
- Presence of postural problems [Time frame: baseline]
Secondary outcome measures (2)
- Smartphone addiction severity [Time frame: Baseline]
- Breathing control [Time frame: baseline]
Eligibility criteria
Inclusion criteria
- Age between 18 and 35 years
- Smartphone user
- Ability to stand independently
- Ability to perform activities of daily living independently
- Ability to understand assessment instructions
- Voluntary participation with signed informed consent
Exclusion criteria
- • History of fracture
- Cardiovascular disease
- Pulmonary disease
- Neurological or orthopedic disorders affecting posture or breathing
- Inability to understand instructions
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Other
Study locations
Turkey (Türkiye) · 1 center
- Emel Mete — Maltepe
Identifiers
NCT: NCT07615322 · SMARTPOSTURE