@JToobyResearch profile picture
James Tooby @JToobyResearch

Research Fellow at @Carnegie_Sport in the @CARR_LBU group. Researching brain injury in rugby using instrumented mouthguards

Joined October 2021
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James Tooby@JToobyResearch
21 Jan 2025
New paper!📰 This study details two computational methods leveraging commercial video analysis data that have been central for: - Synchronise HAEs to video footage - Quantify HAE risk from rugby match events - Rapidly generate iMG reports for teams
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✏️New paper! Head acceleration event (HAE) exposure in professional men’s rugby league: 📉Fewer HAEs per player match in rugby league compared to union 📉HAEs less likely in rugby league tackles compared to union 📈Individuals with elevated HAE values 🔓rdcu.be/epNCc
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Despite these lower findings on average, some players exhibit elevated values 🧠If these are persisted over multiple matches and seasons, these players may be at an increased risk of neurological effects
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📉How can we reduce HAE exposure in rugby league and rugby union? ❓Why is probability so much higher in rugby union? 📈How can we monitor and manage players with elevated HAE exposure? rdcu.be/epNCc
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Here is the link! rdcu.be/d68UG

James Tooby@JToobyResearch
21 Jan 2025
New paper!📰 This study details two computational methods leveraging commercial video analysis data that have been central for: - Synchronise HAEs to video footage - Quantify HAE risk from rugby match events - Rapidly generate iMG reports for teams
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It is important to note that these methods rely on the availability of a dataset of video-coded match events, however, they have also been effective with another dataset since this paper was written!
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These methods continue to be used in rugby research and practice, and may also be implemented in different sports. All source code is available in the Supplementary Materials of the paper!
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Speaking to the publishers to get the Supplementary Materials added to the website!
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Using our datasets, this process was very reliable and had reasonably good accuracy!
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With our datasets, this process was also very effective; the PPV for identifying the correct event was > 0.9 for both rugby union and rugby league!
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Post-synchronisation event matching (catchy, I know!) simply aligns each SAE to the coded match event which we think caused it, based on their newly aligned timestamps. For example, if we have a dataset of coded rugby tackles, we can identify which one caused each SAE.
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New paper!📰 This study details two computational methods leveraging commercial video analysis data that have been central for: - Synchronise HAEs to video footage - Quantify HAE risk from rugby match events - Rapidly generate iMG reports for teams
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Cross-correlation synchronisation takes a dataset of potential head impacts (PHI) and a dataset of sensor acceleration events (SAEs) to determine the synchronisation point that aligns the most together. This allows us to identify the SAEs in video footage.
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James Tooby retweeted
Enora Le Flao@EnoraLeFlao
1 May 2024
📢New paper by @xianghao_zhan et al.! We used an AI model to eliminate some of the noise measured by instrumented mouthguards: "peak kinematics after denoising were more accurate" Such models will help improve the quality of our head impact datasets! 👀 ieeexplore.ieee.org/document…

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James Tooby retweeted
Enora Le Flao@EnoraLeFlao
11 Mar 2024
A great piece to understand limitations of head impact sensors: 🗝️Triggering mechanisms and processing algorithms are far from perfect. 🗝️Head impact measures are estimations of true exposure and should always be interpreted with caution. More thoughts below [1/?]...
James Tooby@JToobyResearch
11 Mar 2024
New current opinion piece📝 rdcu.be/dAHBp🔓 With the growing use of iMGs across sports, this piece explores the technical constraints of the devices for measuring head acceleration events and considerations for the interpretation of iMG data... [1/13]
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New current opinion piece📝 rdcu.be/dAHBp🔓 With the growing use of iMGs across sports, this piece explores the technical constraints of the devices for measuring head acceleration events and considerations for the interpretation of iMG data... [1/13]
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To conclude, this article was written to highlight technical constraints of iMGs and considerations of iMG data with the goal of improving the interpretation of iMG data within research, practice, and the media. [12/13]
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Therefore, hopefully this can serve as a useful resource for all iMG stakeholders, including researchers, readers of research, practitioners, journalists, etc., etc. Here is the link to read the full article again: rdcu.be/dAHBp🔓 [13/13]

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