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Blake D. McLean, Donald Strack, Jennifer Russell and Aaron J. Coutts

technologies use multiple anchor nodes (RFID) 8 or cameras (optical tracking) 9 , 10 to record the position of athletes on the court. The exact configuration of anchor nodes and cameras varies based on requirements of the specific technology and venue. In the case of RFID 11 systems, athletes must wear a

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Steven J. Obst, Lee Barber, Ashton Miller and Rod S. Barrett

system consisted of a conventional ultrasound machine (SonixTouch, Ultrasonix, Richmond, BC, Canada) and a 5-camera optical tracking system (V100:R2, Tracking Tools v 2.5.2, NaturalPoint, Corvallis, OR, USA) that enabled synchronous recording of 2D brightness mode (B-mode) ultrasound images with 3D

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Anat V. Lubetzky, Bryan D. Hujsak, Gene Fu and Ken Perlin

). We wrote custom software to access the head transform data (position and rotation) recorded by the Oculus Rift headset. Data were recorded at 60 Hz using the Oculus optical tracking and inertial measurement unit. We used custom made Matlab (Matlab_R2017a for Macintosh; Mathworks, Natick, MA) software

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Paul S. Bradley and Jack D. Ade

accelerations, but such data have yet to be validated using optical tracking systems. Although including accelerometer indices is more representative of current practices, it must be noted that these are typically presented blind and without context. Thus, this new approach could be used to contextualize