NextRound -formerly known as Strike-f(x) is a free hanging, intelligent boxing bag that measures impact force and location of punch and kick actions. NextRound was developed in collaboration between researchers and engineers for scientific measurement, and is now commercially sold by a start-up called Sport-f(x). The NextRound won the Dutch Sports Innovation Award in 2020. … Continue reading The NextRound intelligent boxing bag
The reliability and accuracy of the Strike-f(x)
This study evaluated the test-retest reliability and accuracy of the Strike-f(x) in a training situation with experienced (kick)boxers. The Strike-f(x) is a free hanging, boxing bag that provides feedback on the impact force and location of striking actions. This study was performed using the second prototype of the Strike-f(x). It showed that measurement system has excellent reliability. … Continue reading The reliability and accuracy of the Strike-f(x)
Automatic classification of strike techniques using limb trajectory data
The classification of limb trajectory data is often cumbersome in research into combat sports. Automatic classification using machine learning techniques has the potential to greatly increase efficiency and reliability of this type of research. We applied supervised classification algorithms on a dataset obtained through a kickboxing experiment and accurately classified over 80% of the strikes. … Continue reading Automatic classification of strike techniques using limb trajectory data
Identifying movement variability within and between striking techniques in combat sports
Skilled performance requires adapting to the surroundings. In this book chapter, we address this adaptability by examining the role of movement variability in maintaining performance in combat sports, and particularly, for strikes with hands and feet. We provide research directions toward how performance optimization may be achieved by learning design that increases functional movement variability. … Continue reading Identifying movement variability within and between striking techniques in combat sports
Disentangling duelling judoka: Automated combat performance analysis
Knowing an opponent’s strengths and weaknesses is crucial for success in combat sports. Yet, the manual performance analysis required to analyse opponents is very time consuming and expensive. The aim of this project was to develop prototype performance analysis software that is capable of automatically detecting and categorising basic actions performed in a combat sport. … Continue reading Disentangling duelling judoka: Automated combat performance analysis