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Related Experiment Videos

Interrater reliability of hand-held dynamometry.

R W Bohannon, A W Andrews

    Physical Therapy
    |June 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Hand-held dynamometer testing showed good to high interrater reliability for six muscle groups in patients with hemiparesis. Further evaluation is recommended for specific muscle groups like shoulder external rotators and wrist extensors.

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    Author response to Schweizer et al.

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    Area of Science:

    • Rehabilitation Medicine
    • Neurology
    • Physical Therapy

    Background:

    • Assessing muscle strength is crucial in diagnosing and managing neurological conditions.
    • Hand-held dynamometry (HHD) is a common tool for measuring muscle strength.
    • Establishing the reliability of HHD is essential for its clinical application.

    Purpose of the Study:

    • To determine the interrater reliability of hand-held dynamometer testing.
    • To evaluate the consistency of strength measurements across different muscle groups.
    • To assess the suitability of HHD for patients with hemiparesis.

    Main Methods:

    • Two raters assessed strength in six muscle groups (shoulder external rotators, elbow flexors, wrist extensors, hip flexors, knee extensors, ankle dorsiflexors).

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  • Thirty patients, primarily with hemiparesis from cerebrovascular accidents, participated.
  • Pearson product-moment correlations and t tests were used for statistical analysis.

    • Main Results:

    • High interrater reliability was observed, with correlation coefficients ranging from .84 to .94 (p < .001).
    • Significant differences in mean scores between raters were found for shoulder external rotators and wrist extensors (p < .05).
    • Overall, the procedure demonstrated good to high reliability across the tested muscle groups.

    Conclusions:

    • Hand-held dynamometry exhibits good to high interrater reliability for assessing strength in multiple muscle groups.
    • Minor discrepancies exist for specific muscle groups, suggesting a need for cautious interpretation.
    • Further research and validation are recommended to refine HHD protocols for clinical use.