Clinical trial NCT06845072: Low-Cost Handgrip Dynamometer in Healthy Adults
Official title: Validity and Reliability a Low-cost Handgrip Dynamometer in Healthy Adults
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Healthy
Hand Grip Strength
Keywords: dynamometer
Lead sponsor: University of Yalova
Sponsor class: OTHER
First posted: 2025-02-25
Enrollment: 177
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Healthy adults

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.


Eligibility criteria: Inclusion Criteria:

* Healty volunteers with 18-65 years

Exclusion Criteria:

* 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

Primary outcomes:
measure: Maximum handgrip strength - Device 1
timeFrame: 7 days
measure: Maximum handgrip strength - Device 2
timeFrame: 7 days
Secondary outcomes:
measure: International Physical Activity Questionnaire - Short Form
timeFrame: Baseline
measure: SBQ - Sedentary Behaviour Questionnaire
timeFrame: Baseline
Other outcomes:
Locations:
city: Yalova
country: Turkey
facility: University of Yalova
city: Yalova
country: Turkey
facility: Yalova University
Study officials:
affiliation: Yalova University
name: Pelin Tiryaki, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: 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.
citation: 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.
citation: 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.