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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
Summary
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.
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.
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