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Related Experiment Videos

Average versus maximum grip strength: which is more consistent?

S G Haidar1, D Kumar, R S Bassi

  • 1Orthopaedic Department, City Hospital, Dudley Road, Birmingham, UK. thehaidars@aol.com

Journal of Hand Surgery (Edinburgh, Scotland)
|January 22, 2004
PubMed
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Assessing grip strength using the average of three measurements is common. This study found both average and maximum values highly consistent, with no significant difference in reliability for grip strength assessment.

Area of Science:

  • Rehabilitation Medicine
  • Physical Therapy
  • Biomedical Engineering

Background:

  • Grip strength assessment commonly uses the average of three consecutive measurements.
  • Reliability of grip strength measurements is crucial for accurate clinical evaluation.
  • Understanding the consistency of different measurement methods is important for standardization.

Purpose of the Study:

  • To compare the consistency of the maximum value versus the average value of three grip strength measurements.
  • To evaluate the reliability of two common grip strength assessment methods.

Main Methods:

  • One hundred healthy volunteers participated in the study.
  • Three grip strength measurements were recorded on two separate occasions, two weeks apart.

Related Experiment Videos

  • Both average and maximum values from three consecutive measurements were calculated for each hand.

    • Main Results:

    • The 95% limits of agreement for the average method were -8.3 to +7.2 kg (-23% to +20%).
    • The 95% limits of agreement for the maximum method were -8.8 to +8.0 kg (-23% to +21%).
    • Both grip strength assessment methods demonstrated high consistency with no statistically significant difference.

    Conclusions:

    • Both the average and maximum value methods for grip strength assessment exhibit comparable and high consistency.
    • Clinicians can confidently use either the average or maximum value of three measurements for reliable grip strength assessment.
    • Further research may explore other factors influencing grip strength measurement reliability.