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Development and Measurement Properties of a Custom-Built Punch Force Dynamometer Based on S-Type Load Cells.

Anderson Meireles1,2, Hiago L R Souza1, Rodney C Paixão1

  • 1Department of Biophysics and Physiology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.

Perceptual and Motor Skills
|July 1, 2026
PubMed
Summary
This summary is machine-generated.

A new custom punch force dynamometer shows excellent reliability for measuring combat sports punch force. This validated device aids performance assessment and training optimization in athletes.

Keywords:
athletic performanceboxingimpact kineticsmuscle strength dynamometertest-retest reliability

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Area of Science:

  • Biomechanics
  • Sports Science
  • Engineering

Background:

  • Accurate punch force measurement is crucial for combat sports.
  • Existing methods may lack reliability or sport-specific applicability.

Purpose of the Study:

  • To develop and validate a custom-built punch force dynamometer.
  • To assess its reliability, sensitivity, and ecological validity for combat sports.

Main Methods:

  • A custom dynamometer with S-type load cells was constructed.
  • Mechanical trials used a drop-weight protocol.
  • Partial ecological validity assessed 11 athletes performing standardized punches across two visits.

Main Results:

  • Excellent reliability (ICC > 0.90) in mechanical trials.
  • Good to excellent reliability (ICC = 0.75-0.90) in ecological validity tests.
  • Measurement sensitivity was high, with SEM consistently lower than SWC.

Conclusions:

  • The custom-built punch force dynamometer is reliable and sensitive.
  • It offers practical utility for laboratory and sport-specific punch force assessment.
  • The device supports performance analysis and training optimization in combat sports.