Investigating how smartphone size and hand measurements affect upper body pain and function

The Effect of Smartphone and Hand Anthropometry on Pain and Upper Extremity Functions

Nigde Omer Halisdemir University · NCT06373315

This study is trying to see if the size of smartphones and the size of people's hands affect upper body pain and how well they can use their arms.

Quick facts

Study typeObservational
Enrollment90 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorNigde Omer Halisdemir University (other)
Locations1 site (Niğde, Nigde)
Trial IDNCT06373315 on ClinicalTrials.gov

What this trial studies

This observational study aims to explore the relationship between smartphone dimensions and hand anthropometry measurements with upper extremity pain and functions. It addresses the increasing use of smartphones and the potential musculoskeletal issues arising from prolonged use and incorrect postures. By analyzing data from participants who frequently use smartphones, the study seeks to raise awareness about the importance of matching mobile phone sizes to hand dimensions for optimal comfort and usability.

Who should consider this trial

Good fit: Ideal candidates are individuals who use smartphones for more than one hour daily and send at least five messages or emails per day.

Not a fit: Patients with existing injuries or diagnosed disorders of the hand or upper extremity will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help patients choose smartphones that reduce upper extremity pain and improve function.

How similar studies have performed: While there is limited literature on this specific relationship, similar studies have indicated a connection between device ergonomics and musculoskeletal issues.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Sending at least 5 e-mails or text messages a day from your mobile phone,
* Using a smartphone for more than 1 hour a day to play games or browse the internet

Exclusion Criteria:

* Having an existing injury in the hand or upper extremity (suffered 6 months ago)
* Having been diagnosed with a degenerative, inflammatory, musculoskeletal, neuromuscular, or congenital disorder of the hand or upper extremity.

Where this trial is running

Niğde, Nigde

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Upper Extremity Problem, Smartphone Addiction, Anthropometric Measurements, Upper Extremity, Smartphone

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.