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Reliability of manual muscle testing with a computerized dynamometer.

C Y Hsieh1, R B Phillips

  • 1Los Angeles College of Chiropractic, CA 90609.

Journal of Manipulative and Physiological Therapeutics
|February 1, 1990
PubMed
Summary
This summary is machine-generated.

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Manual dynamometry shows high reliability when patients initiate testing, but low reliability when doctors initiate it. This suggests the patient-initiated method is acceptable for clinical use.

Area of Science:

  • Applied Kinesiology
  • Musculoskeletal Assessment
  • Biomechanical Measurement

Background:

  • Manual dynamometry is frequently used in applied kinesiology for muscle strength assessment.
  • Understanding the reliability of different testing methods is crucial for accurate clinical evaluation.

Purpose of the Study:

  • To evaluate the intratester and intertester reliability of manual dynamometry.
  • To compare the reliability of doctor-initiated versus patient-initiated testing methods.

Main Methods:

  • Three testers assessed muscle strength in 30 healthy adults using manual dynamometry.
  • Doctor-initiated and patient-initiated methods were employed, with testing repeated after 7 days.
  • Intratester and intertester reliability coefficients were calculated for both methods.

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Main Results:

  • Patient-initiated method demonstrated high intratester (0.96-0.99) and intertester (0.95-0.96) reliability.
  • Doctor-initiated method showed lower intratester (0.55-0.76) and intertester (0.59-0.77) reliability.
  • Reliability decreased for the doctor-initiated method on day 2.

Conclusions:

  • Manual dynamometry is a reliable assessment tool when using the patient-initiated method.
  • The doctor-initiated method exhibits unacceptable reliability for clinical application.
  • The patient-initiated approach is recommended for consistent muscle strength evaluations.