Pasha van Bijlert
@PashavanBijlert
Followers
1K
Following
5K
Media
406
Statuses
2K
PhD candidate 🇳🇱 @UUGeo & @Naturalis_sci | MSc @VU_FBW | Biomechanist & dino paleontologist | 3D reconstructions 📷:Tom Brown
the Netherlands
Joined July 2020
Most birds use a funny running style: grounded running. It's a paradox: GR costs more energy than normal running, but animals usually minimize costs. Do birds waste energy? We resolve this with a model of the emu (the best bird). 1st PhD chapter, out in @ScienceAdvances .1/17
15
203
1K
RT @PashavanBijlert: @SirBlameson @itsleviathanart The bird project focused on the legs, so I immobilised the neck. I wrote a paper on T. r….
0
1
0
The head bobbing section is based on Frost 1978 (. The second half of the video is based on our grounded running study:.
researchgate.net
PDF | SUMMARY 1. Head-bobbing of pigeons during walking and landing was studied using high-speed motion photography. 2. The analysis of film records... | Find, read and cite all the research you need...
Most birds use a funny running style: grounded running. It's a paradox: GR costs more energy than normal running, but animals usually minimize costs. Do birds waste energy? We resolve this with a model of the emu (the best bird). 1st PhD chapter, out in @ScienceAdvances .1/17
0
0
6
Why do birds bob their heads? Why is their running style different to ours? Just want to see untrained chickens on a treadmill? Watch this new video! It's in Dutch, with English subtitles. Watch till the end to see me get interrupted by loud chickens.
1
6
15
RT @bones2bytes: A short write up on our recent Lucy locomotion story in the @ConversationUK Many thanks to the wh….
theconversation.com
There has been much debate over the years as to exactly how “Lucy” walked.
0
3
0
RT @JohnRHutchinson: Applications are now open for a MRes with me to study locomotion in extant/extinct archosaurs, using 3D modelling and….
0
9
0
RT @ICB_journal: See the amazing covers of 2024 for ICB!.featuring photography from .Aaron Griffing.Jackson R Phillips.Ethan Staats .Todd G….
0
1
0
RT @peterfalkingham: A review on #dinosaur locomotion in Biology Letters as part of the 200 years of dinosaurs special issue. #openaccess….
royalsocietypublishing.org
Dinosaur locomotor biomechanics are of major interest. Locomotion of an animal affects many, if not most, aspects of life reconstruction, including behaviour, performance, ecology and appearance. Yet...
0
15
0
RT @NarimaneChatar: Abstract submission for @SEBiology 2025 in Antwerp is officially OPEN 🦾 Submit your abstract now for the session A2: "E….
sebiology.org
Abstract submissions will open from Monday 6th January until Friday 7th March 2025
0
6
0
Emu simulations by @YutingTheEmu !!
Ever wondered how birds stand up? Our paper explores how emus use their muscles to stand up. We found that these large, flightless birds use large muscle fibre length changes, activations and forces. My 1st PhD chapter out now in @JEB!.
1
0
5
The simulations were performed in Gaitsym by Karl, which I visualized in Blender using my plugin MuSkeMo, which is available here: .
github.com
Build and visualize musculoskeletal models in Blender - PashavanBijlert/MuSkeMo
0
0
2
Tagging all the co-authors on twitter: @SamCoatham, @cbrassey, @james_charles90, @bones2bytes, @wisellers (and myself =). @ArchaeoAshleigh wrote an accompanying dispatch:
cell.com
Endurance running is thought as critical for the evolutionary success of hominins. A new study analysing the running skills of the famous ‘Lucy’ — Australopithecus afarensis — finds that they...
1
4
9
New paper in @CellPressNews Current Biology by Karl Bates (@LivEvoBiomech) ea. Karl's physics simulations (validated in a human model) suggest that although Lucy could run - top speed was limited, not leaving much headroom for endurance running.
NEWS | @LivUni has led an international team of scientists to take a fresh look at the running capabilities of our early human ancestors🏃. Find out more⬇️.
1
26
79
Forgot to link the actual paper.
academic.oup.com
Synopsis. Musculoskeletal simulations can provide insights into the underlying mechanisms that govern animal locomotion. In this study, we describe the dev
I promised I’d make a thread about it, so here goes - Are you interested in horses? Musculoskeletal modelling? Predictive simulations of quadrupedal gaits? Then this paper is for you!.This made the cover of @ICB_journal !.With @tgeijten @Anneschulp Ineke Smit & Karl Bates
0
3
17
And silly me, forgot to link the actual paper.
academic.oup.com
Synopsis. Musculoskeletal simulations can provide insights into the underlying mechanisms that govern animal locomotion. In this study, we describe the dev
0
0
4
And why T. rex may have had a relatively slow walking speed:.
MY FIRST PAPER! We've developed a method to estimate the preferred walking speed of dinosaurs (spoiler: T. rex wasn't that fast).With Knoek van Soest & @Anneschulp. Check out those tail movements on Trix the T. rex (made with Rick Stikkelorum & Arthur Ulmann).#biomechanics .1/13
1
1
6
Want more biomechanics? Check out my thread & paper on why birds have a funny running style.
Most birds use a funny running style: grounded running. It's a paradox: GR costs more energy than normal running, but animals usually minimize costs. Do birds waste energy? We resolve this with a model of the emu (the best bird). 1st PhD chapter, out in @ScienceAdvances .1/17
1
1
7
Many thanks to my co-authors - @tgeijten Ineke Smit, @Anneschulp and Karl Bates (@LivEvoBiomech). Special thanks to Janneke Schwaner for inviting me to SICB 2024. Also tagging everyone mentioned here!.@wisellers @dtpolet @McGowanBiomech @TaylorJMDick @cclemente4
1
0
6
I built this model using MuSkeMo – my model building plugin for @Blender. It’s compatible with both OpenSim and Gaitsym, and I’m looking to increase compatibility. Check out the preprint: and download the plugin here:
1
1
8
The model’s name is SHADOWFAX - which stands for Simulated Horse Anatomy Demonstrating Optimal Walking & Fast ACCeleration. It’s available from I’m hoping people will try to use the model for their own analyses, e.g. for veterinary clinical studies.
1
1
7