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NCT Number: NCT06845072

Low-Cost Handgrip Dynamometer in Healthy Adults

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.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Yalova, Yalova, Turkey (Türkiye)

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Primary outcomes

  1. Maximum handgrip strength - Device 1

    Time frame: 7 days

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

  2. Maximum handgrip strength - Device 2

    Time frame: 7 days

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

Secondary outcomes

  1. International Physical Activity Questionnaire - Short Form

    Time frame: Baseline

    The purpose of the questionnaire is to provide common instruments that can be used to obtain internationally comparable data on health-related physical activity. The total score is grouped as inactive (<600 MET-min/week), minimally active (minimum 600 MET-min/week and <3000 MET-min/week) and active (>3000 MET-min/week).

  2. SBQ - Sedentary Behaviour Questionnaire

    Time frame: Baseline

    The SBQ was designed to assess the amount of time spent doing 9 behaviors (watching television, playing computer/video games, sitting while listening to music, sitting and talking on the phone, doing paperwork or office work, sitting and reading, playing a musical instrument, doing arts and crafts, sitting and driving/riding in a car, bus, or train). The 9 items were completed separately for weekdays and weekend days.

Sponsors and collaborators

Lead sponsor

University of Yalova

Other

Registry information

Official study title

Validity and Reliability a Low-cost Handgrip Dynamometer in Healthy Adults

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Feb 25, 2025
Registry last updated
Jul 29, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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