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Updated: Jun 16, 2026
Measurement of Spatial Stability in Precision Grip
Published on: June 4, 2020
Measurement of hand grip strength: A cross-sectional study of two dynamometry devices
Alison Lupton-Smith1, Kyla Fourie2, Anele Mazinyo2
1Division of Physiotherapy, Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
Background:
Grip strength has been identified as an important indicator of health status and predictor of clinical outcomes. The gold standard for measuring grip strength is the JAMAR® Hydraulic Hand Dynamometer. Less expensive dynamometers are available but have not been validated within a hospital setting.
Objectives:
To validate the Camry Digital Handgrip Dynamometer (Model EH101) against the validated JAMAR® Dynamometer (Model J00105) in a hospital population.
Methods:
A cross-sectional observational study with a randomised single-blind cross-over component was conducted on consenting adult patients admitted to general hospital wards. The best of three measurements taken using the dominant hand was used for analysis.
Results:
Fifty-one participants (median [interquartile range] age 42 [30-58] years; n = 27 [52.9%] female) were included. The mean difference between the Jamar® and Camry measurements was 1.9 kg ± 3.6 kg (t-value 0.9; p = 0.4). There was a strong positive correlation between the Jamar® and the Camry devices (R = 0.94; r² = 0.88; p < 0.0001). Excellent agreement was found between Jamar® and Camry measurements (interclass correlational coefficient 0.97, 95% CI 0.94-0.99, p < 0.0001). Hand dominance significantly affected the agreement between devices (p = 0.002).
Conclusions:
The Camry Digital Handgrip Dynamometer is a valid tool for assessing grip strength in hospitalised adult patients.
Clinical Implications:
The Camry Digital Handgrip Dynamometer could be used as an inexpensive tool to measure grip strength.
