Effect of Smartphone Usage

NCT06941454 | Not Yet Recruiting

• 1 other identifier: 2209-A/123
• Study Type: observational
• Target: 50
• Locations: 0 countries
• Sites: N/A

Brief Summary

Screen time is defined as the time spent on many electronic and technological devices such as laptops, tablets, televisions, game consoles, and smartphones. The largest portion of screen time is made up of smartphones, which are currently used at very high rates. The increase in screen time, which describes the time an individual spends in front of technological devices, can pave the way for various physical problems when not controlled. The most important of these problems caused by excessive screen use due to increased smartphone use is postural disorders. Based on this, the original value of this research is to examine and reveal the effects of smartphone use on balance and dual-task performance. Scientific data can be reached on the negative effects of increased screen use caused by smartphone use.

Conditions

Healthy Volunteers

Keywords

smartphone

Outcome Measures

Primary Outcomes (3)

• Smartphone usage time

  The average daily smartphone usage time will be calculated by dividing the total smartphone usage time for the last week by 7. The average smartphone usage time will be recorded in minutes.

  Baseline

• Y Balance Test

  The Y balance test is a time-efficient test that evaluates the dynamic limits of stability and asymmetric balance in three directions (anterior, posteromedial, and posterolateral). The test setup consists of three tape measures with distances in cm on them, one located anteriorly, the other two posterolaterally and posteromedially.

  Baseline

• Flamingo Balance Test

  During the test, the participant will be asked to stand on the board with his/her foot, lift his/her other foot off the ground, and hold his/her knee with the same hand to maximum flexion. The stopwatch will be started and the measurement will begin when the participant releases the hand of the researcher from whom he/she receives support. The stopwatch will be stopped when the participant releases his/her foot or when any part of his/her body touches the ground.

  Baseline

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Healthy Volunteers

You may qualify if:

• Between the ages of 18-30
• Have a smartphone usage period of the last 7 days

You may not qualify if:

• Having a severe medical condition
• Having any disease that may affect cognitive level
• Having any disease that may affect balance
• Being pregnant
• Having an orthopedic or neurological surgery within the last year
• Using a mobility assistive device
• Not owning a smartphone

Sponsors & Collaborators

• University of Yalova: lead

Related Publications (5)

• Serdar CC, Cihan M, Yucel D, Serdar MA. Sample size, power and effect size revisited: simplified and practical approaches in pre-clinical, clinical and laboratory studies. Biochem Med (Zagreb). 2021 Feb 15;31(1):010502. doi: 10.11613/BM.2021.010502. Epub 2020 Dec 15.

  PMID: 33380887 BACKGROUND

• Liebherr, M., Schubert, P., Antons, S., Montag, C., & Brand, M. (2020). Smartphones and attention, curse or blessing? - A review on the effects of smartphone usage on attention, inhibition, and working memory. Computers in Human Behavior Reports, 1, 100005. https://doi.org/10.1016/j.chbr.2020.100005

  BACKGROUND

• Hill MW, Wdowski MM, Rosicka K, Kay AD, Muehlbauer T. Exploring the relationship of static and dynamic balance with muscle mechanical properties of the lower limbs in healthy young adults. Front Physiol. 2023 May 26;14:1168314. doi: 10.3389/fphys.2023.1168314. eCollection 2023.

  PMID: 37304823 BACKGROUND

• Fusco A, Giancotti GF, Fuchs PX, Wagner H, da Silva RA, Cortis C. Y balance test: Are we doing it right? J Sci Med Sport. 2020 Feb;23(2):194-199. doi: 10.1016/j.jsams.2019.09.016. Epub 2019 Sep 26.

  PMID: 31601458 BACKGROUND

• Adamczewska-Chmiel K, Dudzic K, Chmiela T, Gorzkowska A. Smartphones, the Epidemic of the 21st Century: A Possible Source of Addictions and Neuropsychiatric Consequences. Int J Environ Res Public Health. 2022 Apr 23;19(9):5152. doi: 10.3390/ijerph19095152.

  PMID: 35564547 BACKGROUND

Central Study Contacts

Pelin Tiryaki, PhD

CONTACT

+905343520042; ptpelintiryaki@gmail.com

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD

Study Record Dates

• First Submitted: April 15, 2025
• First Posted: April 23, 2025
• Study Start: May 15, 2025
• Primary Completion: December 15, 2025
• Study Completion: February 15, 2026
• Last Updated: April 23, 2025

Record last verified: 2025-04