Smartphone Use and Hand Function in Young Adults

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Conditions studied: Smartphone Addiction

In brief

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.

Key facts

Study ID

NCT07540546

Run by

Saglik Bilimleri Universitesi

People needed

84

Starts

2026-05-01

Expected to finish

2027-05-01

Last updated by the study team

2026-04-22

Who can join

Age: 18 and older, up to 35. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy adults
• Aged between 18 and 35 years
• Voluntary participation in the study

You may not qualify if…

• History of hand or wrist surgery
• Fracture or serious injury in the hand/thumb within the last 6 months
• Neurological disorders
• Rheumatologic diseases
• Cognitive impairment preventing understanding of instructions

Where it is running

• Saglik Bilimleri Universitesi — Istanbul, Uskudar, Turkey (Türkiye)

Full record on ClinicalTrials.gov

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