Jason Franz

You have to read @kelseytea.bsky.social excellent work on dexterity in deer mice evolved in forest vs prairie habitats. A powerful example of cross species comparisons to study principles of motor control ✅

📣 We're searching for our next Deputy Editor who will directly support incoming Editor @franzbiomech.bsky.social for a 2-yr term beginning Jan. 2026. Help us build on the momentum we've gained under outgoing Editor @katherineaboyer.bsky.social.

More info: journals.humankinetics.com/page/JAB-cal...

Brand new POSTDOC opportunity in my lab (!!) will help lead a multi-institutional collaboration designed to enhance understanding of anatomic variability in Achilles tendinopathy toward more effective, personalized clinical interventions.

Learn more and apply: unc.peopleadmin.com/postings/307...

Biomechanics Lab Associate - New York Yankees Biomechanics Lab Associate                                                             &nbs...

Title: Biomechanics Lab Associate

📍Place: @yankees.com ‬⁩ 🇺🇸

💰Salary: TBC

📅Deadline: 31/10/25

ℹ For more details👇 www.teamworkonline.com/baseball-job...

Check out our latest - an experimental + modeling project: "The Effects of Hip Abductor Fatigue on Gait Instability in Older Adults": pubmed.ncbi.nlm.nih.gov/40939027/

We draw a mechanistic link between hip abductor fatigue and its compromising effect when called upon to preserve gait stability.

Industry collaboration led by @kkatugam.bsky.social reveals that shoe features intended for stability vs. agility minimally bias performance towards either respective benefit = improved consumer confidence in footwear selection, often called upon to meet a variety of activities of daily living.

In our latest, @jointbme.bsky.social PhD Student Ethan Simaitis finds a reduced capacity to adjust foot placement in older adults during prolonged walking, which may contribute to an increased risk of instability and falls.

authors.elsevier.com/a/1lkeN4-6-l...

We are really excited here @jointbme.bsky.social to contribute to advancing understanding of Achilles subtendon structure/function in Achilles tendinopathy. This new NIH R01 will formalize our longstanding collaboration with fantastic colleagues at the University of Delaware!

tinyurl.com/4etcv9tp

Please repost!

We have an open rank, tenure-line faculty position in biomechanics in the School of Kinesiology at the University of Michigan Ann Arbor. At U-M we have great colleagues, exceptional resources, and biomechanics can be found all across the campus. #BiomechSky

We've grown more and more interested in the role of fatigue in shaping locomotor behavior. Our latest paper points to a functional consequence of the increased physiological demand placed on calf muscles when operating at shorter lengths—namely accelerated fatigue.

peerj.com/articles/198...

Photograph of an Asian elephant (Elephas maximus) being ridden by a mahout walking across the force plate walkway with white markers painted on the skin. Photo credit: Joackim Genin.

#elephants are incredibly economical movers, but it turns out that swinging their massive limbs uses 75% of the energy they consume when moving, which is an extraordinarily high cost compared to mice and men

journals.biologists.com/jeb/article/...

🏙️ ASB 2025 kicks off in 3 days!
Wednesday has workshops and events — a perfect warm-up before the full conference.
🧠 Morning & Afternoon Workshops
🎓 Student Welcome @ 17:30
🥂 Opening Reception @ 18:00
🎉 Student Night Out @ 19:30
📍 asbweb.org/program
#ASB2025 #Biomechanics

Our team @jointbme.bsky.social is ready for @amsocbiomech.bsky.social #ASB2025 in Pittsburg next week. We're really proud of the science we and our collaborators are presenting this coming week, from posters and podiums to award finalists and a ton of professional development. See you there!

Can we alter older adult gait energetics by stiffening their footwear? Beats me! But I bet if you swing by Footwear & Foot Orthoses tomorrow (7/30) @10:40am in room C4 you might find out. See you there 🤓 #ISB2025

After 2 weeks of family holiday around Scandinavia, welcome to Stockholm. #isb2025.

As promised - our new post-doc position is now available!! Join our productive inter-institutional team at UNC-Chapel Hill in an ongoing NIH-funded project collaborating with friends at Utah (reporter.nih.gov/search/nC8k4...)

Apply now (Active until filled!): unc.peopleadmin.com/postings/304...

Will you be at ISB or ASB in the coming weeks? Definitely come talk to me or someone from our group about a new Postdoc Position we are looking to fill asap in foot neuromechanics, aging, and gait. I'll post the official call for applications soon. Join us at UNC Chapel Hill! Reposts encouraged.

Really proud to have Aubrey Gray and @kkatugam.bsky.social both recognized as finalists for these ASB awards!! @jointbme.bsky.social

National Science Foundation Workers to Issue “Alexandria Declaration” Decrying “Catastrophic Changes” Under Trump Administration The new declaration echoes similar efforts from NIH and EPA.

Alexandria Declaration coming out from courageous NSF staff.

www.importantcontext.news/p/national-s...

I knew this was it in the works, but did not know the timing. Stay tuned...

Wrapping the transverse foot arch improves running economy Humans have more curved transverse foot arches than extant apes. Through cross-axis coupling, greater transverse foot arch curvature stiffens the overall foot. Due to the functional implications of ev...

Wrapping the transverse foot arch improves running economy!

doi.org/10.1242/jeb....

Looking forward to participating on this panel (Mostly to learn from the other panelists!!). Consider joining us for this upcoming professional development event.

ASB long form logo on left of vertical bar with De Luca Foundation logo on right. Logos overlaid on yellowed graphic of davinci's biomechanics drawings, knee reaction force diagram, and knee replacement xray

🎉 Big news! ASB received a $500K donation from the De Luca Foundation to expand access to biomechanics!
💡 Supports B-SURE Grants + travel awards for our Annual Meeting.
🙏 Thank you, De Luca Foundation!
🔗 Read more: asbweb.org/category/stateme...
#ASB2025 #STEM #Biomechanics

A 40-Year Contemporary Evolution of Gait and Posture Mechanics in the Journal of Applied Biomechanics "A 40-Year Contemporary Evolution of Gait and Posture Mechanics in the Journal of Applied Biomechanics" published on 10 Jun 2025 by Human Kinetics.

Pleasure to collaborate with fellow @jabjournal.bsky.social Associate Editors @chrismccrum.bsky.social and Tanvi Bhatt in writing "A 40-Year Contemporary Evolution of Gait and Posture Mechanics in the Journal of Applied Biomechanics". Now available open access: doi.org/10.1123/jab.....

Congratulations!!

One of the most exceptional professional development experiences I've had the pleasure of participating in. Highly Recommended!!

Our lab and @jointbme.bsky.social representing well in the annual @amsocbiomech.bsky.social awards! @kkatugam.bsky.social selected finalist for Clinical Biomechanics award, Aubrey Gray selected finalist for Journal of Biomechanics award, and Megan Weaver receives travel award. Congratulations team!!

Science in Every Step - UNC Research Stories Jason Franz is helping older adults stay on their feet as they age by creating solutions to prevent falls and maintain independence.

Thanks to the UNC Office of Research for featuring our work and our commitment to the community in such a remarkable way. Investing in academic research is investing in the health and vitality of people and communities.

endeavors.unc.edu/science-in-e...

"Compared to younger adults, older adults appear to have a diminished capacity to instinctively increase toe clearance in response to slip-like balance perturbations, which may allow lesser time to accommodate instability"

Now available via PLOS One.

journals.plos.org/plosone/arti...

Latest from Ross Smith - "The effects of series elastic stiffness and cutaneous sensitivity on leg muscle reflex responses to unanticipated slips during walking" now available in @expbrainres.bsky.social. Open Access Link available:

tinyurl.com/y9mz3vbk

😃 A new article published in J Biomech by Maddox et al. explore age-related differences in muscle coordination during lateral stepping in walking, shedding light on older adults' increased fall risk.

👀 buff.ly/0gILIgZ
#BiomechSky