Health TrialsbyHealthPanel

Smartphone Addiction on the Biomechanical Properties of Thumb Muscles and Thumb Sensory Sensitivity

ConditionsSmartphone AddictionThumb Injury
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-30
SponsorSaglik Bilimleri Universitesi

About this trial

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.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Aged 18-30 years

Currently enrolled university students

Regular smartphone users

Disqualifiers

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

Trial population

The study population will consist of university students aged 18 to 30 years who are regular smartphone users. Participants will be recruited from a university setting and will voluntarily participate in the study after providing written informed consent. Both male and female students will be eligible. Participants will be assigned to one of two groups-smartphone-addicted or non-addicted-based on their scores on the Smartphone Addiction Scale - Short Version (SAS-SV). Only healthy individuals without any systemic, neurological, musculoskeletal, or upper extremity disorders will be included. The study will focus on a relatively homogeneous group of young adults to examine the early neuromuscular and sensory impacts of smartphone usage.

Trial design

Design model

Case-control

Time perspective

Prospective

Treatments tested in this trial

  • Thumb evaluations

    Diagnostic test

    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 Baseline Aesthesiometer with a two-point discrimination test. These assessments will be conducted during a single laboratory visit and will not involve any treatment, medication, or behavioral intervention. This is a purely observational study aimed at identifying potential associations between smartphone usage patterns and thumb neuromuscular or sensory changes.

Treatment groups

36 Participants
are divided into 2 treatment groups
Group A: Smartphone-Addicted Group1 intervention
Group B: Non-Addicted Control Group1 intervention

Trial outcomes

Primary outcomes

1

MyotonPro™ Muscle Assessment

This device will be used to assess muscle tone, stiffness, and elasticity in the abductor pollicis brevis, opponens pollicis, and flexor pollicis brevis muscles of both hands. Measurements will be performed with the participant in a standardized seated position.

Time frame
Baseline

Secondary outcomes

1

Baseline Aesthesiometer Sensory Assessment

This instrument will be used to evaluate thumb sensory sensitivity through two-point discrimination testing on both hands. Participants will be blindfolded during the procedure and tested at the distal phalanx of the thumb.

Time frame
Baseline
2

Smartphone Addiction Scale - Short Version (SAS-SV)

The Smartphone Addiction Scale - Short Version (SAS-SV) is a validated self-report questionnaire developed to assess the risk of smartphone addiction, particularly in adolescents and young adults. It consists of 10 items, each rated on a 6-point Likert scale ranging from 1 (strongly disagree) to 6 (strongly agree). The total score ranges from 10 to 60, with higher scores indicating a greater risk of smartphone addiction.

Time frame
Baseline

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Saglik Bilimleri Universitesi

Lead sponsor

Source ClinicalTrials.gov
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