Sjoerd Bruijn
@smbruijn.bsky.social
#biomechsky question. Is there a way to plot opensim models/kinematics/ whatever native from python? That is, without opening an opensim window, can I plot a vsiualisation of my results of the sim? If not, why not? And would you be interested in it?
January 19, 2026 at 7:16 PM
#biomechsky question. Is there a way to plot opensim models/kinematics/ whatever native from python? That is, without opening an opensim window, can I plot a vsiualisation of my results of the sim? If not, why not? And would you be interested in it?
And another preprint. This time with Simone Berkelmans and @maartenafschrift.bsky.social
Foot placement is not controlled based on angular momentum.
Bold title; hope it stands up to your scrutiny!
As always; feedback and comments more than welcome!
www.biorxiv.org/content/10.6...
Foot placement is not controlled based on angular momentum.
Bold title; hope it stands up to your scrutiny!
As always; feedback and comments more than welcome!
www.biorxiv.org/content/10.6...
Foot placement is not controlled based on angular momentum
This study examined how mediolateral foot placement is controlled following mechanical perturbations that affected either whole-body linear or angular momentum. Predictive foot placement models based ...
www.biorxiv.org
December 9, 2025 at 7:58 AM
And another preprint. This time with Simone Berkelmans and @maartenafschrift.bsky.social
Foot placement is not controlled based on angular momentum.
Bold title; hope it stands up to your scrutiny!
As always; feedback and comments more than welcome!
www.biorxiv.org/content/10.6...
Foot placement is not controlled based on angular momentum.
Bold title; hope it stands up to your scrutiny!
As always; feedback and comments more than welcome!
www.biorxiv.org/content/10.6...
Just realised @gengyang.bsky.social is on Bsky as well…. Give her a follow if you like this work!
New preprint; Shared feedback control principles across standing and walking. With Yang Geng and @jvandieen.bsky.social. Feedback welcome!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Shared feedback control principles across standing and walking
Feedback control is required to maintain stability in both walking and standing, whereas the control parameters may differ due to the inherently different characteristics of these tasks. How feedback ...
www.biorxiv.org
November 28, 2025 at 7:15 PM
Just realised @gengyang.bsky.social is on Bsky as well…. Give her a follow if you like this work!
New preprint; Shared feedback control principles across standing and walking. With Yang Geng and @jvandieen.bsky.social. Feedback welcome!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Shared feedback control principles across standing and walking
Feedback control is required to maintain stability in both walking and standing, whereas the control parameters may differ due to the inherently different characteristics of these tasks. How feedback ...
www.biorxiv.org
November 28, 2025 at 10:57 AM
New preprint; Shared feedback control principles across standing and walking. With Yang Geng and @jvandieen.bsky.social. Feedback welcome!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
You can still register for the International Motor Impairments Conference; motorimpairment.org. The program looks exciting so what are you waiting for?
September 11, 2025 at 7:05 AM
You can still register for the International Motor Impairments Conference; motorimpairment.org. The program looks exciting so what are you waiting for?
Reposted by Sjoerd Bruijn
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
July 2, 2025 at 8:50 PM
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
Reposted by Sjoerd Bruijn
Yes or no debates finally back. Who takes the prize? #ISPGR2025
July 1, 2025 at 10:08 AM
Yes or no debates finally back. Who takes the prize? #ISPGR2025
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
July 1, 2025 at 10:13 AM
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
Reposted by Sjoerd Bruijn
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
🧠 Session O.01 – Coordination of Posture & Gait in PD
📅 30th June | 🕒 15:30–17:30
📍 Auditorium 2
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!
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
June 29, 2025 at 2:23 PM
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
🧠 Session O.01 – Coordination of Posture & Gait in PD
📅 30th June | 🕒 15:30–17:30
📍 Auditorium 2
Meeting friends old and new on #ispgr2025. Hope to connect online as well! @ispgr.bsky.social
June 29, 2025 at 2:59 PM
Meeting friends old and new on #ispgr2025. Hope to connect online as well! @ispgr.bsky.social
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!
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
June 29, 2025 at 10:44 AM
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!
www.biorxiv.org/content/10.1...
feedback welcome!
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!
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
June 29, 2025 at 10:40 AM
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!
feedback welcome!
On my way to Maastricht for @ispgr.bsky.social! See you there!
June 29, 2025 at 10:39 AM
On my way to Maastricht for @ispgr.bsky.social! See you there!
Bump. Who will join for bouldering? probably tuesday after conference.
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
June 20, 2025 at 6:23 AM
Bump. Who will join for bouldering? probably tuesday after conference.
New preprint with Yaqi Li, Eugenie Lambrecht and @jvandieen.bsky.social; www.biorxiv.org/cgi/content/...
Suggestions and feedback welcome!
#BiomechSky
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
May 8, 2025 at 1:24 PM
New preprint with Yaqi Li, Eugenie Lambrecht and @jvandieen.bsky.social; www.biorxiv.org/cgi/content/...
Suggestions and feedback welcome!
#BiomechSky
Suggestions and feedback welcome!
#BiomechSky
April 24, 2025 at 7:44 AM
Want to do this. Shall I do this?
this is how I start all my research talks
April 19, 2025 at 7:14 AM
Want to do this. Shall I do this?
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
ispgr.org/mentor-progr...
#biomechsky
Mentor Program - ISPGR
ispgr.org
April 18, 2025 at 9:29 AM
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
ispgr.org/mentor-progr...
#biomechsky
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
April 18, 2025 at 9:27 AM
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
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
March 14, 2025 at 3:08 PM
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
Ok, sky help me out here. If doing inverse kinematics using IMUs, is really only the orientation of the sensors used? It would seem that if you have a reasonable estimate of pos of sensor on segment, given kinematic chain, you would also know acc, and hence, could use that info for better fit. 1/2
March 4, 2025 at 7:28 AM
Ok, sky help me out here. If doing inverse kinematics using IMUs, is really only the orientation of the sensors used? It would seem that if you have a reasonable estimate of pos of sensor on segment, given kinematic chain, you would also know acc, and hence, could use that info for better fit. 1/2
Come to Amsterdam this fall (Oct 8-10) for the International Motor Impairment Conference!
February 13, 2025 at 7:20 AM
Come to Amsterdam this fall (Oct 8-10) for the International Motor Impairment Conference!
Have free living lower back IMU data, and want to identify gait? Check out new preprint by Yuge Zhang; "An open-source, externally validated neural network algorithm to recognize daily-life gait of older adults based on a lower-back sensor". www.biorxiv.org/content/10.1.... Feedback welcome!
An open-source, externally validated neural network algorithm to recognize daily-life gait of older adults based on the lower-back sensor
Background Accurate gait recognition from daily physical activities is a critical first step for further fall risk assessment and rehabilitation monitoring based on inertial sensors. However, most ope...
www.biorxiv.org
February 10, 2025 at 7:56 AM
Have free living lower back IMU data, and want to identify gait? Check out new preprint by Yuge Zhang; "An open-source, externally validated neural network algorithm to recognize daily-life gait of older adults based on a lower-back sensor". www.biorxiv.org/content/10.1.... Feedback welcome!