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Related Experiment Videos

Intra- and inter-tester reliability and reference values for hand strength.

A Peolsson1, R Hedlund, B Oberg

  • 1Department of Neuroscience and Locomotion, Division of Physiotherapy, Faculty of Health Sciences, Linköping University, Sweden. Anneli.Peolsson@hul.liu.se

Journal of Rehabilitation Medicine
|August 2, 2001
PubMed
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The Jamar dynamometer reliably measures handgrip and indexgrip strength. Sex is a key factor in hand strength, and new reference values aid in evaluating cervical radiculopathy patients.

Area of Science:

  • Rehabilitation Medicine
  • Orthopedics
  • Neurology

Background:

  • Handgrip strength is a crucial indicator of overall health and functional status.
  • Cervical radiculopathy can significantly impair upper extremity function, necessitating reliable assessment tools.
  • Existing reference values for hand strength may not adequately account for demographic variations.

Purpose of the Study:

  • To assess the reliability of the Jamar dynamometer for measuring handgrip and indexgrip strength.
  • To establish age- and sex-specific reference values for hand strength.
  • To enhance the objective evaluation of patients with cervical radiculopathy.

Main Methods:

  • Investigated intra- and inter-tester reliability of the Jamar dynamometer in healthy volunteers and patients with cervical radiculopathy.

Related Experiment Videos

  • Measured handgrip and indexgrip strength in 101 healthy volunteers (aged 25-64) to establish reference values.
  • Analyzed the influence of age, sex, height, and body weight on hand strength.

    • Main Results:

    • The Jamar dynamometer demonstrated high reliability for measuring handgrip and indexgrip strength (ICC values 0.85-0.98).
    • Sex was identified as a more significant determinant of hand strength than age, height, or body weight.
    • Established age- and sex-specific reference values for hand strength.

    Conclusions:

    • The Jamar dynamometer is a reliable and recommended tool for clinical use in assessing hand strength.
    • The developed reference values provide a basis for objective evaluation of patients with hand/arm impairments due to cervical radiculopathy.
    • These findings contribute to improved diagnostic accuracy and treatment monitoring in neurological and orthopedic conditions affecting the upper extremities.