Digital Technology Use, Digit Ratio, and Handgrip Strength in University Students (DTU-HGS)
5. juli 2026 opdateret af: Assoc. Prof. Dr. Özgür EKEN, Inonu University
Problematic Smartphone and Internet-Use Symptoms, Handgrip Strength, and Digit Ratio in University Students From Different Regional Backgrounds
This observational cross-sectional study examined associations among second-to-fourth digit ratio, handgrip strength, problematic smartphone-use symptoms, problematic Internet-use symptoms, and self-reported smartphone usage time in university students from different regional backgrounds.
The analytic sample included 173 students aged 17-26 years from Turkish, Middle Asian, African, and Asian regional backgrounds.
Participants completed validated self-report scales for smartphone-use and Internet-use symptoms, and underwent anthropometric, hand morphology, and handgrip strength measurements.
The study did not involve randomization, treatment assignment, intervention, or follow-up.
Studieoversigt
Status
Afsluttet
Detaljeret beskrivelse
This exploratory observational cross-sectional study evaluated whether bilateral second-to-fourth digit ratio and handgrip strength were associated with smartphone-addiction symptom scores, Internet-addiction symptom scores, and self-reported smartphone usage time among university students from different regional backgrounds.
The final analytic sample consisted of 173 participants aged 17-26 years, including Turkish, Middle Asian, African, and Asian students.
Regional-background comparisons and sex-specific associations were analyzed using descriptive statistics, group comparisons, correlation analyses, and sensitivity analyses adjusted for age and body mass index.
The study was observational only and did not include any intervention, random allocation, treatment exposure, clinical procedure, or prospective follow-up.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
173
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
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Balıkesir, Tyrkiet (Türkiye)
- Bandırma Onyedi Eylül University
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
Tager imod sunde frivillige
Ja
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
University students aged 17-26 years from Turkish, Middle Asian, African, and Asian regional backgrounds studying at Bandırma Onyedi Eylül University.
Beskrivelse
Inclusion Criteria:
- University students aged 17-26 years.
- Classifiable sex and regional-background information.
- Ability to understand the study procedures.
- Written informed consent provided.
- For participants younger than the legal age of majority, additional parent or legal guardian consent obtained according to institutional requirements.
Exclusion Criteria:
- Previous finger operation.
- Finger prosthesis.
- Median, radial, or ulnar nerve deformity.
- Carpal tunnel syndrome.
- Developmental or mental disorder preventing participation or valid assessment.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
|---|
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Turkish university students
University students from Turkish regional background included in the observational cross-sectional analysis.
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Middle Asian university students
University students from Middle Asian regional backgrounds included in the observational cross-sectional analysis.
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African university students
University students from African regional backgrounds included in the observational cross-sectional analysis.
|
|
Asian university students
University students from Asian regional backgrounds included in the observational cross-sectional analysis.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Internet-addiction symptom score
Tidsramme: At baseline / single cross-sectional assessment
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Internet-addiction symptoms assessed using the Young Internet Addiction Scale-Short Form.
Higher scores indicate greater Internet-use symptom severity.
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At baseline / single cross-sectional assessment
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Smartphone-addiction symptom score
Tidsramme: At baseline / single cross-sectional assessment
|
Smartphone-addiction symptoms assessed using the Smartphone Addiction Scale-Short Version.
Higher scores indicate greater smartphone-use symptom severity.
|
At baseline / single cross-sectional assessment
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Second-to-fourth digit ratio
Tidsramme: At baseline / single cross-sectional assessment
|
Right and left second-to-fourth digit ratios calculated from index and ring finger lengths measured using a digital caliper.
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At baseline / single cross-sectional assessment
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Handgrip strength
Tidsramme: At baseline / single cross-sectional assessment
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Right and left handgrip strength measured using an electronic handgrip dynamometer.
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At baseline / single cross-sectional assessment
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Self-reported smartphone usage time
Tidsramme: At baseline / single cross-sectional assessment
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Daily smartphone usage time reported by participants in hours per day.
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At baseline / single cross-sectional assessment
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. december 2022
Primær færdiggørelse (Faktiske)
30. maj 2023
Studieafslutning (Faktiske)
30. maj 2023
Datoer for studieregistrering
Først indsendt
5. juli 2026
Først indsendt, der opfyldte QC-kriterier
5. juli 2026
Først opslået (Faktiske)
10. juli 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
10. juli 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
5. juli 2026
Sidst verificeret
1. juli 2026
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- BYEU-HSI-2022-164
Plan for individuelle deltagerdata (IPD)
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INGEN
IPD-planbeskrivelse
Individual participant data will not be publicly shared because the dataset contains participant-level behavioral and anthropometric information.
Data may be available from the corresponding author upon reasonable request and subject to ethical and institutional approval.
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