Smartphone Addiction on the Biomechanical Properties of Thumb Muscles and Thumb Sensory Sensitivity
For patients and families
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: Thumb evaluations.
- Who it may be relevant to
- Registry conditions: Smartphone Addiction, Thumb Injury. Basic parameters: 18 years — 30 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
Investigation of the Effect of Smartphone Addiction on the Biomechanical Properties of Thumb Muscles and Thumb Sensory Sensitivity in University Students
Overview
This study will aim to assess the effects of smartphone addiction on thumb muscle biomechanics and sensory sensitivity among university students. The research will investigate whether excessive smartphone use leads to significant differences in muscle tone, stiffness, elasticity, and sensory discrimination capabilities.
Detailed description
This will be a prospective, non-randomized, controlled observational study designed to examine the impact of smartphone addiction on the neuromuscular and sensory function of the thumbs. A total of 36 university students aged 18 to 30 will be recruited and categorized into two groups based on their scores from the Smartphone Addiction Scale - Short Version (SAS-SV): addicted and non-addicted.
Participants' weekly screen times will be recorded, and the smartphone applications used will be categorized. The MyotonPro™ device will be used to measure the biomechanical properties of three thumb muscles (abductor pollicis brevis, flexor pollicis brevis, and opponens pollicis) in both hands. Sensory function will be assessed bilaterally using the Baseline Aesthesiometer via two-point discrimination testing.
This study will evaluate whether significant biomechanical or sensory changes are observable among addicted users compared to non-addicted users, and whether screen time is correlated with any muscular or sensory outcomes.
Interventions
- Diagnostic test Thumb evaluations
There is no therapeutic or experimental intervention in this study. All procedures will be limited to diagnostic evaluations. The study will include non-invasive biomechanical and sensory assessments to compare the thumb muscle characteristics and sensory discrimination between smartphone-addicted and non-addicted university students. Specifically, muscle tone, stiffness, and elasticity will be measured using the MyotonPro™ device, and thumb sensory sensitivity will be evaluated using a Baselin
Primary outcome measures
- MyotonPro™ Muscle Assessment [Time frame: Baseline]
Secondary outcome measures (2)
- Baseline Aesthesiometer Sensory Assessment [Time frame: Baseline]
- Smartphone Addiction Scale - Short Version (SAS-SV) [Time frame: Baseline]
Eligibility criteria
Inclusion criteria
- Aged 18-30 years
- Currently enrolled university students
- Regular smartphone users
Exclusion criteria
- Presence of systemic, chronic, or neuromuscular disorders
- History of upper limb surgery or trauma
- Neurological or orthopedic conditions affecting upper extremities
- Subcutaneous fat over target muscles >20 mm
- Presence of wounds or burns on the measurement area
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Study design
- Observational model
- Case-control
Study locations
Turkey (Türkiye) · 1 center
- Esra Pehlivan — Istanbul
Identifiers
NCT: NCT07040267 · Smartphone Addiction& Thumb-1