NCT06845072

Brief Summary

The gold standard device for measuring grip strength is the Jamar® Hydraulic Hand Dynamometer. The Jamar® Hydraulic Hand Dynamometer is a high-priced device. It has an analog reading feature. The Jamar hydraulic hand dynamometer is recommended by the American Association of Hand Therapists and is considered the gold standard because of its high validity and reliability. Due to its cost, the use of this dynamometer is quite limited in certain countries and settings. However, there is a new version, the JAMAR Plus+, which has a digital reading feature. This version is even more expensive. In recent years, the use of less expensive dynamometers for measuring grip strength has become increasingly common in clinical settings and scientific research. In particular, the Camry Dynamometer, which is ten times cheaper, is frequently used. Despite its frequent use in scientific research, a review of the current literature has shown that the validity and reliability of the Camry has not been examined in healthy populations. Our study compares the Jamar® Hydraulic Hand Dynamometer, the gold standard device for measuring grip strength, with the lower cost and lighter handheld digital Camry dynamometer.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
177

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 2025

Shorter than P25 for all trials

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 19, 2025

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 25, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

April 16, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 28, 2025

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 30, 2025

Completed
Last Updated

July 29, 2025

Status Verified

July 1, 2025

Enrollment Period

3 months

First QC Date

February 19, 2025

Last Update Submit

July 28, 2025

Conditions

Keywords

dynamometer

Outcome Measures

Primary Outcomes (2)

  • Maximum handgrip strength - Device 1

    Maximum grip strength is a measure of muscular strength or the maximum force/tension generated by one's forearm muscles.

    7 days

  • Maximum handgrip strength - Device 2

    Maximum grip strength is a measure of muscular strength or the maximum force/tension generated by one's forearm muscles.

    7 days

Secondary Outcomes (2)

  • International Physical Activity Questionnaire - Short Form

    Baseline

  • SBQ - Sedentary Behaviour Questionnaire

    Baseline

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Healthy adults

You may qualify if:

  • Healty volunteers with 18-65 years

You may not qualify if:

  • Using any assistive device,
  • Having rheumatoid arthritis, gout, neuromuscular disease or any acute/chronic disease that may affect grip strength,
  • Pregnancy,
  • Previous subluxation, dislocation or fracture in the upper extremity,
  • Type 1 or Type 2 DM,
  • Unstable chronic and systemic diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Yalova

Yalova, 77200, Turkey (Türkiye)

Location

Yalova University

Yalova, Turkey (Türkiye)

Location

Related Publications (3)

  • Cildan Uysal S, Tonak HA, Kitis A. Validity, reliability and test-retest study of Grip strength measurement in two positions with two dynamometers: Jamar(R) Plus and K-Force(R) Grip. Hand Surg Rehabil. 2022 Jun;41(3):305-310. doi: 10.1016/j.hansur.2022.02.007. Epub 2022 Mar 10.

    PMID: 35283336BACKGROUND
  • Guerra RS, Amaral TF, Sousa AS, Fonseca I, Pichel F, Restivo MT. Comparison of Jamar and Bodygrip Dynamometers for Handgrip Strength Measurement. J Strength Cond Res. 2017 Jul;31(7):1931-1940. doi: 10.1519/JSC.0000000000001666.

    PMID: 28640771BACKGROUND
  • Leong DP, Teo KK, Rangarajan S, Lopez-Jaramillo P, Avezum A Jr, Orlandini A, Seron P, Ahmed SH, Rosengren A, Kelishadi R, Rahman O, Swaminathan S, Iqbal R, Gupta R, Lear SA, Oguz A, Yusoff K, Zatonska K, Chifamba J, Igumbor E, Mohan V, Anjana RM, Gu H, Li W, Yusuf S; Prospective Urban Rural Epidemiology (PURE) Study investigators. Prognostic value of grip strength: findings from the Prospective Urban Rural Epidemiology (PURE) study. Lancet. 2015 Jul 18;386(9990):266-73. doi: 10.1016/S0140-6736(14)62000-6. Epub 2015 May 13.

    PMID: 25982160BACKGROUND

Study Officials

  • Pelin Tiryaki, PhD

    University of Yalova

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Physical Therapist

Study Record Dates

First Submitted

February 19, 2025

First Posted

February 25, 2025

Study Start

April 16, 2025

Primary Completion

July 28, 2025

Study Completion

August 30, 2025

Last Updated

July 29, 2025

Record last verified: 2025-07

Locations