#NewPaper #Biomechanics #Swimming

Sánchez-Rodríguez, J., Raufaste, C. & Argentina, M. Scaling the tail beat frequency and swimming speed in underwater undulatory swimming. Nat Commun 14, 5569 (2023). https://doi.org/10.1038/s41467-023-41368-6

Subscribers to The Company of Biologists’ WeChat channel can find out more about Deputy Editor-in-Chief, Sheila Patek, in her #JEB100 Conversation bit.ly/44wVpte

#Science #Biology #Biomechanics #Zoology

New #preprint : "Experimental and Computational Analysis of Energy Absorption Characteristics of Three Biomimetic Lattice Structures Under Compression" https://arxiv.org/abs/2308.14452
#finiteelementanalysis #biomechanics #lattice

Ars Technica: Pew, pew, pew! These plants shoot out their seeds like bullets https://arstechnica.com/?p=1963218 #Tech #arstechnica #IT #Technology #springactuation #Biomechanics #biophysics #kinematics #witchhazel #Science #Biology #science #botany #plants

Pew, pew, pew! These plants shoot out their seeds like bullets - Scientists have measured just how fast members of the witch hazel family can shoot... - https://arstechnica.com/?p=1963218 #springactuation #biomechanics #biophysics #kinematics #witchhazel #science #biology #botany #plants

Issue 15 has closed and issue 16 is open

https://journals.biologists.com/jeb/issue/226/15

The front cover by Claire Terhune shows a tufted capuchin feeding on monkey chow. Laird & co discovered that the primates' bite forces and gapes increased with body mass and facial width across ontogeny and suggest that that juveniles must compensate for their reduced bite force in order to consume the same diet as adults

#biomechanics #zoology #biology #primates

The full research can be accessed at https://journals.biologists.com/jeb/article/226/15/jeb245972/325755

Do you have an interest in #spine #biomechanics? Do you have experience in image-based #computational mechanics for contact? Come and join me @universityleeds for a #postdoc on a project about facet joints biomechanics and how it changes post spinal fusion #joboffer #job #research

https://jobs.leeds.ac.uk/Vacancy.aspx?id=39641&forced=2

Have quite enjoyed messing about with our #OpenSim #upperlimb #biomechanics model this morning! Finally sorting out some troublesome muscle wrapping issues around the elbow 😃.

In their new Commentary, Roche, Tytell & Domenici outline practical guidelines for conducting, analysing and reporting escape response experiments in #fish.

Read the full article here:
https://journals.biologists.com/jeb/article/226/14/jeb245686/324853

#biomechanics #behaviour #zoology #Science #Biology

#introduction Hi there! 👋 I'm a PhD Student at the Structure and Motion Lab in Royal Veterinary College and Moazen's Lab at University College London. I’m into the fascinating world of #biomechanics and #evolution in animals. When I'm not deeply engrossed in my research, you can find me advocating for #conservation and #AnimalWelfare issues. Feel free to say hello if you share the same passion in nature and science! 🌿🎨 #phdstudent #researcher #scientist #biomechanics #evolutionarybiology

In his #JEB100 ECR Spotlight Frederik Püffel tells us about his research on leaf-cutter ants, how they decide which leaves each ant cuts, and how the larger workers bite even stronger than expected.

https://journals.biologists.com/jeb/article/226/13/jeb246346/323870

Read his full research here:

https://journals.biologists.com/jeb/article/226/13/jeb245140/323872

#entomology #biomechanics #science #zoology

The results are in! Although a majority said (a), for this particular setup, (b) jumps higher.

This is NOT a general rule in biological jumpers, and is particular to how we've set up the problem (notably, no force-velocity relationship) #biomechanics

All that matters is the amount of work done by the muscle. Since there is no force-velocity relationship, the work done is proportional to the shortening distance. Case (b) wins because the larger in-lever allows the muscle to shorten more

We have an intuition that (a) should be better because biological jumpers look like that. But this is to accommodate power-velocity relationships in muscle, which this setup doesn't have.

My intuition was initially drawn to (c), but the physics clearly show (b) as the winner here. A good reminder to check model assumptions!

If anyone has a good real-world example analogous to this setup, let me know! Force-velocity is pervasive, though

The results are in! Although a majority said (a), for this particular setup, (b) jumps higher.

This is NOT a general rule in biological jumpers, and is particular to how we've set up the problem (notably, no force-velocity relationship) #biomechanics

All that matters is the amount of work done by the muscle. Since there is no force-velocity relationship, the work done is proportional to the shortening distance. Case (b) wins because the larger in-lever allows the muscle to shorten more

We have an intuition that (a) should be better because biological jumpers look like that. But this is to accommodate power-velocity relationships in muscle, which this setup doesn't have.

My intuition was initially drawn to (c), but the physics clearly show (b) as the winner here. A good reminder to check model assumptions!

If anyone has a good real-world example analogous to this setup, let me know! Force-velocity is pervasive though

Studying how muscles work in huge animals is difficult so Rice &co developed a technique that lets researchers study the muscles of smaller animals and apply it to others
https://journals.biologists.com/jeb/article/226/13/jeb246325/323869

Read the full research here
https://journals.biologists.com/jeb/article-abstract/226/13/jeb244721/323866

#biomechanics #science #zoology #biology

Is it better to jump with a long foot or short foot?

The cases below only differ by whether the in-lever or out-lever is bigger. Which will jump higher?

Ignore contraction dynamics & imagine the body is constrained to go straight up.

Answer and discuss below 👇 #biomechanics

In her #JEB100 Conversation Deputy Editor-in-Chief Sheila Patek discusses the power of interdisciplinary research & how she would tell her younger self to believe in her lived experience when encountering career challenges

Read the article here
https://journals.biologists.com/jeb/article/226/13/jeb246250/323165

#biomechanics #zoology #science #biology

Hi all - 👋

By way of #introduction, I am an academic #biomedical #engineer interested in #biomechanics 💪, #movementanalysis, #rehabilitation technologies and #musculoskeletal modelling.

Based in Aberdeen, Scotland.

The physics of how gentoo penguins can swim speedily underwater - Enlarge / Gentoo penguins are the world's fastest swimming birds, thank... - https://arstechnica.com/?p=1948717 #fluidmechanics #fluiddynamics #hydrodynamics #biomechanics #penguins #science #animals #biology #physics

Ars Technica: The physics of how gentoo penguins can swim speedily underwater https://arstechnica.com/?p=1948717 #Tech #arstechnica #IT #Technology #fluidmechanics #fluiddynamics #hydrodynamics #Biomechanics #Penguins #Science #animals #Biology #Physics #science

What does this #3Dprinted device have to do with #Lizard feet? To find out, come to my #SEB2023 talk Fri at 9:30 in Tinto for the Open #Biomechanics session: "Plantigrade feet avoid work through serial linkages"

You might even get a copy to take home (while supplies last)! 🦎👣