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Sjoerd Bruijn @smbruijn.bsky.social · Sep 11

You can still register for the International Motor Impairments Conference; motorimpairment.org. The program looks exciting so what are you waiting for?

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Sjoerd Bruijn @smbruijn.bsky.social · Jul 8

Any people going to #isb2025 on here? Thinking of going bouldering there one evening. Want to join? Let me know!

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Reposted by Sjoerd Bruijn

ISPGR @ispgr.bsky.social · Jul 3

See you in Japan! #ISPGR2027

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Sjoerd Bruijn @smbruijn.bsky.social · Jul 2

If this were a normal @ispgr.bsky.social and I would be handling the official account as usual, this is the moment I would sign off. Not this year. Keynote tomorrow at 8:30. Party in full swing. Loving it! See you all tomorrow! #ispgr2025

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Sjoerd Bruijn @smbruijn.bsky.social · Jul 1

Btw, this is only part of the team. Some members were mia due to the huge and very interesting poster session

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Reposted by Sjoerd Bruijn

ISPGR @ispgr.bsky.social · Jul 1

Yes or no debates finally back. Who takes the prize? #ISPGR2025

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Sjoerd Bruijn @smbruijn.bsky.social · Jul 1

Have you met any of our JPND funded STEPuP project members yet? We cannot be missed! Ask us about this amazing project @ispgr.bsky.social #ispgr2025

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Reposted by Sjoerd Bruijn

Deepak Ravi @deepak-ravi.bsky.social · Jun 29

The lead author will present this study at #ISPGR2025!

🧠 Session O.01 – Coordination of Posture & Gait in PD
📅 30th June | 🕒 15:30–17:30
📍 Auditorium 2

Sjoerd Bruijn @smbruijn.bsky.social · Jun 29

And another preprint, this one from our STEPUP consortium: "Foot placement coordination is impaired in people with Parkinson’s Disease". Too many authors to tag!
www.biorxiv.org/content/10.1...
feedback welcome!

Foot placement coordination is impaired in people with Parkinson’s Disease

Background Gait instability is a common and disabling symptom of Parkinson’s disease (PD), contributing to frequent falls and reduced quality of life. While clinical balance tests and spatiotemporal g...

www.biorxiv.org

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Sjoerd Bruijn @smbruijn.bsky.social · Jun 29

Meeting friends old and new on #ispgr2025. Hope to connect online as well! @ispgr.bsky.social

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Sjoerd Bruijn @smbruijn.bsky.social · Jun 29

And another preprint, this one from our STEPUP consortium: "Foot placement coordination is impaired in people with Parkinson’s Disease". Too many authors to tag!
www.biorxiv.org/content/10.1...
feedback welcome!

Foot placement coordination is impaired in people with Parkinson’s Disease

Background Gait instability is a common and disabling symptom of Parkinson’s disease (PD), contributing to frequent falls and reduced quality of life. While clinical balance tests and spatiotemporal g...

www.biorxiv.org

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Sjoerd Bruijn @smbruijn.bsky.social · Jun 29

New preprint by Yiyuan Li, with @jvandieen.bsky.social and others; The contribution of vestibular and proprioceptive signals to trunk stabilization varies between postural tasks and between walking speeds. www.biorxiv.org/content/10.1...
feedback welcome!

The contribution of vestibular and proprioceptive signals to trunk stabilization varies between postural tasks and between walking speeds

Stabilizing the upright posture of the trunk relies on vestibular and proprioceptive afference. Previous studies found that the feedback responses to sensory afference vary between postures and tasks....

www.biorxiv.org

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Sjoerd Bruijn @smbruijn.bsky.social · Jun 29

On my way to Maastricht for @ispgr.bsky.social! See you there!

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Sjoerd Bruijn @smbruijn.bsky.social · Jun 28

Just make sure to bring some sporty clothes

Sjoerd Bruijn @smbruijn.bsky.social · Jun 20

Bump. Who will join for bouldering? probably tuesday after conference.

Sjoerd Bruijn @smbruijn.bsky.social · Apr 18

So who on here is going to ISPGR this year? Anyone up for a night of bouldering? There's a great gym in Maastricht... #Biomechsky

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Sjoerd Bruijn @smbruijn.bsky.social · Jun 20

sure! I will make a communication channel of some sorts, and communicate about the planning.

Sjoerd Bruijn @smbruijn.bsky.social · May 8

New preprint with Yaqi Li, Eugenie Lambrecht and @jvandieen.bsky.social; www.biorxiv.org/cgi/content/...
Suggestions and feedback welcome!
#BiomechSky

The Impact of Visual Perturbations on Balance Control during Walking

Visual perturbations may lead to a perception of self-motion and affect balance control. We studied effects of different visual perturbations in 16 healthy young participants walking on a treadmill, b...

www.biorxiv.org

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Sjoerd Bruijn @smbruijn.bsky.social · Apr 24

Vote for @leeuwenmoira.bsky.social and Mohammadreza!
www.formdesk.com/vuamsterdam/...

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Sjoerd Bruijn @smbruijn.bsky.social · Apr 19

Want to do this. Shall I do this?

Lauren @gramnegativity.bsky.social · Apr 19

this is how I start all my research talks

Moby Dick @mobydickatsea.bsky.social · Apr 19

ye shall soon be initiated into certain facts hitherto pretty generally unknown

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Sjoerd Bruijn @smbruijn.bsky.social · Apr 18

Also, (ssssht, tell this to your students!) I've heard that despite the deadline, the registration for the mentorship programme is still open..... What are you(re students) waiting for?
ispgr.org/mentor-progr...
#biomechsky

Mentor Program - ISPGR

ispgr.org

Sjoerd Bruijn @smbruijn.bsky.social · Apr 18

So who on here is going to ISPGR this year? Anyone up for a night of bouldering? There's a great gym in Maastricht... #Biomechsky

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Sjoerd Bruijn @smbruijn.bsky.social · Mar 14

That time of the year again…. Waiting for an old geezer on the other side of the pond to light a cigarette, so the refreshing of my feed can begin… #bm100

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Sjoerd Bruijn @smbruijn.bsky.social · Mar 4

:-). Partially caused by my inability to Google, and my knowledge that the people out here are still way smarter than LLMs... ;-)

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Sjoerd Bruijn @smbruijn.bsky.social · Mar 4

Or, maybe you need to know one (either alignment or position), but you would probably be able to estimate the other than, right? And wouldnt that be optimal over assuming these both? Or is this optimisation problem simply to underdetermined then? My gut feeling says this should be possible?

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Sjoerd Bruijn @smbruijn.bsky.social · Mar 4

btw, the toolbox looks super cool, and I've been wanting to play with it, but little time. Hopefully this summer.

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Sjoerd Bruijn @smbruijn.bsky.social · Mar 4

Ok, one last, maybe ignorant question. You assume known IMU locations and sensor to segment alignment(time invariant), and then fit model on angular velocity and acceleration. Would it be possible to use orientation data in addition, and by doing so estimate the time invariant parameters?

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