Smartphone Use and Hand Function in Young Adults

This observational cross-sectional study aims to investigate the relationship between daily smartphone usage duration and hand function parameters in young adults. Specifically, the study will examine the association between smartphone screen time and dominant hand grip strength, thumb strength, and wrist and thumb proprioception. Healthy individuals aged 18-35 years will be included. All participants will undergo a single-session assessment including measurement of smartphone usage duration, hand grip strength, pinch strength, and joint position sense of the wrist and thumb. The findings are expected to provide insight into the potential effects of prolonged smartphone use on hand function and proprioceptive performance in young adults.

NCT Number	NCT07540546
Lead Sponsor	Saglik Bilimleri Universitesi
Conditions	Smartphone Addiction
Enrollment	84 participants
Start Date	2026-05-01
Primary Completion	2027-05-01 (estimated)
Study Completion	2027-05-01 (estimated)
Updated on ClinicalTrials.gov	2026-04-22