Impact of De Quervain's Tenosynovitis on Grip Strength and Quality of Life in Smartphone-Addicted Adolescents

NCT07758699 | Completed

• 1 other identifier: P.T.REC/012/006384
• Study Type: observational
• Target: 100
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this Cross Sectional Case Controlled study is to Investigate the effect of de quervain's tenosynovitis on hand grip strength and Quality of life among smartphone addicts' adolescents. The main question it aims to answer is: Is de quervain's tenosynovitis influences hand grip strength and quality of life in smartphone addict adolescents? Smart phone addicts' adolescents were equally distributed into two groups: Group A: Smart phone addicts' adolescents with de quervains Group B: Smart phone addicts' adolescents without de quervains (as a reference group). Smart phone addicts' adolescents in the two groups were assessed regarding the following:

• Qe quervain's tenosynovitis by The Finkelstein test.
• The hand grip strength by handgrip dynamometer.
• The effect on the quality of life by Pediatric Quality of Life Inventory (PedsQL Version 4.0).

Conditions

Hand Grip Strength; Quality of Life

Keywords

handgrip; dequervains; quality of life; smartphone addiction

Outcome Measures

Primary Outcomes (2)

• hand grip strength

  measured using Jamar Plus+ Digital Hand Dynamometer.

  baseline assessment

• quality of life

  measured by by Pediatric Quality of Life Inventory (PedsQL Version 4.0).

  baseline

Study Arms (2)

Group A: Smart phone addicts' with de quervains

Group A: Smart phone addicts' adolescents with de quervains it is the study group

Group B: Smart phone addicts' without de quervains

Group B: Smart phone addicts' without de quervains it is the refrence group

Eligibility Criteria

• Age: 12 Years - 16 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17)
• Sampling Method: Non-Probability Sample

Study Population

• Smart phone addicts' adolescents (male and female) ranged from 12 to 16 years.

You may qualify if:

• Adolescents who have been using smartphones for more than 3 hours per day for 2 years. They have scores ranged from 31 to 60 points for boys and from 33 to 60 points for girls on smart phone addiction scale (SAS-SV) (Appendix II) according to Kwon et al. (2013), who considered boys and girls with these scores to be addicted adolescents.
• Adolescents who have been using their phones in odd or abnormal positions, e.g., using smartphones in bed, while lying on their side, lying prone, with one hand for prolonged time or in slouched sitting posture.
• Smart phone addicts' adolescents was diagnosed with de quervains (male and female) ranged from 12 to 16 years.

You may not qualify if:

• Smart phone addicts' adolescents were excluded from the study if one or more of the following histories were presented:
• Upper limb surgery
• Inflammatory arthritis
• Fractures
• Diabetes
• Massive use of any tool other than smartphones
• Racquet\\ overhead sports athletes

Sponsors & Collaborators

• Mariam Mohamed Sherif: lead

Study Sites (1)

Faculty of physical therapy, Cairo University

Giza, Egypt

Location

MeSH Terms

Conditions

Internet Addiction Disorder

Condition Hierarchy (Ancestors)

Technology Addiction; Behavior, Addictive; Compulsive Behavior; Impulsive Behavior; Behavior

Study Officials

• Mariam M Fouad Shawky, BSc

  Cairo University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Master's Candidate, Faculty of Physical Therapy, Cairo University

Study Record Dates

• First Submitted: August 6, 2026
• First Posted: August 11, 2026
• Study Start: April 4, 2026
• Primary Completion: June 24, 2026
• Study Completion: June 24, 2026
• Last Updated: August 11, 2026

Record last verified: 2026-01

Locations

EG (1)