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Development of a Mobile Phone App for Measuring Striking Response Time in Combat Sports: Cross-Sectional Validation
Victor Coswig1, Jader Sant' Ana2, Maicon Nascimento Coelho2
1Universidade Federal do Pará, Departamento de Educação Física, Castanhal, Brazil.
JMIR Mhealth and Uhealth
|November 12, 2019
Summary
The TReaction mobile app accurately measures strike response time in combat sports. This study validates the app as a reliable tool for athletes to assess their reaction speed.
Area of Science:
- Sports Science
- Human Movement Analysis
- Mobile Technology in Athletics
Background:
- Assessing reaction time is crucial for combat sports performance.
- Existing methods for measuring response time can be costly and complex.
- The TReaction mobile application offers a low-cost, user-friendly alternative.
Purpose of the Study:
- To evaluate the validity and reliability of the TReaction app for measuring motor response time.
- To compare the TReaction app's measurements against a validated system.
Main Methods:
- Two athletes performed 59 strikes, with response times measured by the TReaction app and a high-speed camera.
- Accuracy was confirmed using a computer simulator.
- Statistical analyses included Pearson correlation, Student t test, and Bland-Altman analysis.
Main Results:
- No significant difference (P=.56) was observed between the TReaction app and the reference system.
- A very strong correlation (r=0.993) was found.
- The typical error of measurement (TEM) was 1.4%, indicating high accuracy.
Conclusions:
- The TReaction app demonstrates high accuracy and reliability in measuring response time.
- It is a valid and accessible tool for combat sports athletes to evaluate their reaction capabilities.
