Anne Koelewijn

It’s in Erlangen, Germany

I’ll be presenting at #ISB2025 tomorrow at 09.10 in Room A1: Measuring Loads & Muscle Activity with AI. Join in if you’d like to hear about predictions of ankle moments from HD-EMG measurements and why we should check if NNs do more than predict the mean of the output data.

#ISB2025
Does marker-based optical motion capture stress participants, and do they walk differently then?

This will be answered on
Monday,28th
🕝 10:50-11:00
📍 Room C1
💪 Parallel session 2F - Locomotion (Influence of Pain & Perception)

Come join :)

Dankjewel!

Tenured! I am incredibly grateful for the support at FAU, especially from @hornegger.bsky.social, Björn Eskofier, Philipp Beckerle, and Martin Vossiek. Of course, this step would have been impossible without the amazing researchers in my group, both past and present.

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Join us in Cleveland as we fight back against the proposed cuts to NASA!

The proposed FY26 budget cuts 40% of civil servant jobs at NASA Glenn, crippling their testing facilities that keep us safe. Let’s make sure it doesn’t go through!

#Ohio
#Cleveland
#StandUpForScience

Dit gebeurt er in je lichaam als je roeit - Delta Roeien en universiteiten gaan al 150 jaar samen. Toch is er nu pas voldoende kennis om in detail na te gaan welke spieren bijdragen aan de roeihaal. “Hiermee kunnen we het roeien analyseren en optimal...

In het Biomechanica Lab van de faculteit ME roeiden 14 sterke en ervaren studenten om beurten op de roeimachine. Postdoc Tom van Wouwe en masterstudent Simon Loose maten de krachten en registreerden de bewegingen om te komen tot de meest gedetailleerde uitsplitsing van de roeislag tot nu toe.

Yes please!

It’s a personal preference. I was once asked to combine two bracketed phrases in the same sentence into one.

For sagittal plane movements, the orientation of the axis perpendicular to the plane can probably be estimated from the movement itself rather than special calibration movements. For 3D movements, I’m not sure. A direct optimization or ML model might work, but should be developed and tested first.

So yes! (Should have answered both messages at the same time). It depends on your definition of assuming but we measure the position (with a scale or with a marker on the IMU) and estimate the alignment using the gravity direction and calibration movements (in the sagittal plane “only”)

Yes, you could even do that without using orientation data and use the optimization to find the optimal alignment and orientation estimation. We did this with a machine learning approach and it worked quite well for the position. We’re still working on that publication.

GitHub - mad-lab-fau/BioMAC-Sim-Toolbox: The biomechanical motion analysis and creation (BioMAC) simulation toolbox can be used to analyse human movement, with a focus on gait simulations The biomechanical motion analysis and creation (BioMAC) simulation toolbox can be used to analyse human movement, with a focus on gait simulations - GitHub - mad-lab-fau/BioMAC-Sim-Toolbox: The bi...

Yup, that is actually pretty similar. We have now also published code that can be used create the simulations here: github.com/mad-lab-fau/...

In ExampleScripts/IMUTracking2D

Estimation of gait kinematics and kinetics from inertial sensor data using optimal control of musculoskeletal models Inertial sensing enables field studies of human movement and ambulant assessment of patients. However, the challenge is to obtain a comprehensive anal…

What info do you want exactly? The methods are described here: www.sciencedirect.com/science/arti... and here: www.frontiersin.org/journals/bio.... I’d be happy to add more information!

We use the acceleration, angular velocities, and position and orientation of the sensor on the body segment but do not use IK. I think that you probably do not need the information very precisely if you have a musculoskeletal model for IK since the model limits the motion to reasonable ones.

I’ll come and laugh! I might steal it for my next course 🤣

Due to administrative rules, we can only provide the reimbursement after the conference has taken place. We are still trying to find a workaround for this.

To sign up, send the following information, as single PDF of <3 pages, to anne.koelewijn(at)fau.de with subject: “ISB-FAME Travel Support”, until 23.03:
- Why you are part of an underrepresented group or your country of origin (<½ page)
- Motivation to join the tutorial (<½ page)
- CV (2 pages)

We can provide a reimbursement for the registration fee for the conference and the tutorial. The support is based on the early bird registration fee and includes the aforementioned tutorial. We will reimburse the conference fee converted to € according to the conversion rate on the day of payment.

Through generous funding from the German Research Foundation, we can support ~6 researchers from underrepresented groups and developing countries who attend the ISB congress in Stockholm and the tutorial “’In the wild’ movement analysis using dynamic simulations”.

YES! Please consider that ONE DAY might not be enough. Let's follow this expert's advice:

Frontiers | Comparing sparse inertial sensor setups for sagittal-plane walking and running reconstructions

Our paper on sparse sensorsets was published: www.frontiersin.org/journals/bio...! Happy to get it out after many private and professional challenges.

We show that as long as there are IMUs on the feet and the thighs/pelvis, simulations are similarly accurate as with a full lower leg IMU setup.

If you see this and you're in the mood, quote post with a beach picture in your gallery.

Monemvasia, Greece

Hello, early career researchers. The deadline for applications for the Promising Young Scientist and Jacquelin Perry Emerging Female Scientist Award are coming up on Feb 28. I HIGHLY encourage you to submit an application. See details here isb2025.com/submission/a...

Biomechanics analysis of surfing! We simulated surfing from inertial sensors and RGB camera recordings: www.researchsquare.com/article/rs-5...

I’ll do that next time 😊. I personally Iike active voice because I find it so much easier to understand the contribution of the paper.

Good question! We use it to simulate gait by solving optimal control problems. We can predict new movements, for example to investigate exoskeleton controllers, and reconstruct from marker, force, and/or inertial measurements. More details in the paper submitted to JOSS, which is in the repository.

GitHub - mad-lab-fau/BioMAC-Sim-Toolbox: The biomechanical motion analysis and creation (BioMAC) simulation toolbox can be used to analyse human movement, with a focus on gait simulations The biomechanical motion analysis and creation (BioMAC) simulation toolbox can be used to analyse human movement, with a focus on gait simulations - GitHub - mad-lab-fau/BioMAC-Sim-Toolbox: The bi...

We have open sourced our simulation toolbox: github.com/mad-lab-fau/.... We have been using it for many years in many publications, and I’m very happy that it is now available to all! Many thanks to all coauthors and to adidas for their support in the development and release. Happy simulating!

It wouldn’t be Germany if it weren’t complicated and varying 😉