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23.01.2022 Biofeedback allows us to track movements in real time in order to train and improve. More importantly, wearable technology combined with augmented reality (AR) can allow these applications in real world settings. In this experiment performed at VU Amsterdam (Karatsidis et al. 2018), we were providing real time feedback of the Foot progression angle (FPA) during walking and projecting it against a target (Blue arrow). The FPA is an important gait parameter that is reported to ...influence the knee adduction moment in knee osteoarthritis sufferers. On the left video you see me walking with optical motion capture and getting the feedback on the screen (GRAIL system), on the right video you see me instrumented with IMU’s (Xsens) streaming the data as a hologram in the Microsoft Hololens. Feedback is given with colours telling me if I am achieving the target FPA. See more

22.01.2022 Speed testing #speed #hockey #athlete #sportstechnology #sportsscience #strengthandconditioning #sports #coaching #technology #olympics

21.01.2022 ACL injuries are a growing burden in sports, with up to 80% of them being non-contact injuries. In this article, I describe the mechanics behind the cause of them. https://principia.com.au/2020//19/what-causes-acl-injuries/

19.01.2022 One of the most difficult challenges experienced by the elderly is the ability to negotiate steps. Those that suffer from pathologies such as knee osteoarthritis take longer to negotiate steps, while altering their strategies with compensatory movements such as forward lean of the trunk. Inertial motion capture makes it possible to measure the movement of patients in their natural environment. Here I use the Xsens MVN system with multi-level tracking to analyse someone walking up a flight of steps.

10.01.2022 With the captain of the Australian curling team, performing 3D analysis of the postures undertaken during the sweep, a technique that allows the stone to travel farther and staighter.

09.01.2022 We are just moments away from releasing something special in Education with our partners. Are you an Educator of STEM based subjects, Sports Science or Biomechanics? Stay tuned to see how Technology can help enhance your student's understanding. #education #students #school #science #highereducation #stem #research #teaching #sports #technology

08.01.2022 Principia is your laboratory out in the real world. Analyse your workers for the postures and movements they undertake in the workplace, with the capability of also understanding muscle forces. Here a box lift is performed with an intentional bad technique to demonstrate what we can measure. Visit www.principia.com.au for more information.

07.01.2022 GPS is a very useful technology in both everyday life and in sporting applications. In this article, I discuss its use and how it can now be integrated with inertial technologies. A must read for all sports scientists and biomechanists. https://principia.com.au//gps-technology-and-integration-/

06.01.2022 Here we see 3D meshes generated from MRI of the donor muscles following a hamstring graft in ACL reconstruction. Harvest of these tendons lead to significant donor muscle atrophy, as well as proximal retraction of the musculotendinous junction. This in turn, has implications for tibiofemoral joint function, stability and loading. Much of my previous research has shown patients to develop knee flexion and internal tibial rotation weakness as a result of these surgeries (Konrath et al. 2016).

06.01.2022 Here we see an athlete performing the Illinois agility test with the Centre of Mass (COM) tracked as the orange sphere. Analysis of the COM can indicate how much braking and propulsion is taking effect. Critical features of turns can be trained such as lowering the COM before the turn, as well as moving the COM in the intended direction of travel. This utilises the stretch-shortening cycle of the leg muscles, enabling them to generate greater vertical and horizontal forces toward the desired direction. Furthermore, it can mitigate the chances of creating dangerous abduction moments at the knee, a known loading scenario of the ACL.

06.01.2022 We had the pleasure of working with Jordan Godtfredsen, as he prepares for the WBC kickboxing world title in 5 weeks.

04.01.2022 It gives us great pleasure to bring to you the educational curriculum "Wearable Technology in Biomechanics and STEM education". Our physical, biological and technological worlds are merging like never before, and the potential of wearable technologies is only restricted by the extent of our imagination. This ground-breaking technology is opening the possibilities for entrepreneurs and innovators to transform their own industries spanning medical, sport, ergonomics and militar...y to name a few. Recent developments in body-worn inertial motion trackers such as the Xsens DOT, allow an affordable and yet highly accurate method of measuring human motion, with strong ecological validity. To enable new generations of students with this powerful tool, we have created a teaching curriculum that has been developed under the syllabus of the Australian Tertiary Admission Rank (ATAR), to achieve many educational outcomes across Biomechanics, sports science and STEM-based subjects. You can see an outline of the curriculum in the Table of Contents below. For more information, contact us at [email protected]

03.01.2022 Medical imaging combined with musculoskeletal modelling allows us to investigate the Biomechanical effects of altered muscle-tendon properties (such as atrophy). In this example we are looking at the hamstring contributions during running. Morphological properties such as cross sectional area and volume can be used to alter muscle model parameters and in turn determine how their force contributions change.