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Binary Sports in Biomechanics

Binary Sports in Biomechanics

Through my work as a biomechanics technician and consultant in applied sport biomechanics, I have had the opportunity to work in different environments and with a variety of equipment and motion analysis tools. Especially when working with coaches and athletes, the ability provide feedback quickly is invaluable when working in applied settings. While many types of equipment often require time to process data, Binary Sports has developed an app that offers a platform to collect video from an athletes sessions and quickly analyse the data to provide an output that is easy to interpret and understand. 

Working with video and data

The Binary App has a workflow that is easy to use making a great tool to work with and it provides a comprehensive video report (video + data) that can be meaningful to coaches, athletes and sport scientists. An additional benefit is that the raw data can be exported from the Binary App. The video tutorials offered through Binary are detailed and easy to understand and have helped me get up to speed with using the app in no time at all. One aspect of the Binary App that appeals to me are that the metrics that are calculated are meaningful. The app developers have worked extensively with leading speed coaches and scientists to ensure that the metrics calculated are meaningful and informative. This takes care of a lot of the guess work when it comes to selecting which metrics to calculate and track. 

Validation study

Within our department, we are currently running a study to validating the metrics obtained from the app against gold standard data. Once complete this will inform on the validity of the data obtained from the App and help build confidence in the data. We are hoping to be able to share some results with you soon. 

Hans von Lieres und Wilkau, PhD

Biomechancis Technician Demonstrator at CARDIFF METROPOLITAN UNIVERSITY.

I completed my PhD with the Sport Biomechanics research group at Cardiff Metropolitan University. i Investigated the the differences in muscle-skeletal characteristics between different phases of sprinting and how these insights can be transferred into applied sport settings.

Quintic vs Binary vs Kinovea Usability

Working on validation with all 3 apps

I have used Binary, Quintic and Kinovea extensively for analysis of maximal sprint and acceleration data. The layout of Binary is sleek-looking and user-friendly; all the buttons are clearly labelled so you can quickly identify the desired metric and begin the analysis. The online tutorials and templates are easy to following, allowing you to quickly get to grips with the intuitive data collection process without reading through a bulky manual. The post-processing time on Binary is significantly reduced compared to the other software as the templates automatically determine the key gait parameters so there is no need to record frame numbers or step lengths in an external programme. Another advantage of Binary is that the individual step parameters are displayed as you proceed through the video which allows corrections to be made as and when required. All these processes significantly reduce the time it takes to collect the same data with Binary compared to the other software.

Using AI

The AI model in Binary is incorporated at key events and includes only segments of interest which gives angle information alongside COM data. This decreases the processing time compared to Quintic and Kinovea as angles, step length and COM data are collected simultaneously in Binary. Both Quintic and Kinovea use a frame-by-frame centre of mass trace whereas Binary analyses the COM at touchdown and take-off events – which I felt reduces frame-to-frame user error as well as significantly speeding up the processing time. There is also the ability to add additional AI models at points of interest so the use of touchdown and take-off events in the speed templates is not a limiting factor if you require additional data.

Conclusion

It is evident that Binary has been designed in a way that biomechanists, coaches and athletes alike can easily and accurately collect the data they require. It is intuitive and user-friendly without cutting corners on the data that can be collected. Binary is game-changing for the accessibility of biomechanic data and transforms the performance analysis world in sprinting. 

Rhona Lloyd

biomechanist at british athletics. sports biomechanics msc student at loughborough university. rugby player for loughborough lightning and scotland women.

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