JULIEN Chlami Jam Publishing LLC

Chlami Jam Publishing LLC Julien

What is it like being the son of Pissed Off Christophe? Let me tell through a quick story

I grew up playing soccer in Las Vegas. I was a goalie and had practice 3-4 times a week with a game on Saturdays and maybe even more on tournament weekends. I never expected my dad to make it, being busy with the restaurant, but he often pleasantly surprised me by showing up.

One cold night I had a game and a couple of minutes in, I saw him on the sidelines. Clearly, I’m excited. Literally less than 10 minutes later, the other team scores on an arguably offsides play. Bet you can guess who “voiced his opinions” the loudest from the sidelines. Needless to say, he gets ejected 10 minutes into the game… BUT as the amazing father he is, he watched from the car in the parking lot behind the goal.

Couple minutes later, I have a big save and instantly I hear a car horn and lights flashing! Knew exactly who it was, and I chuckled.

10 minutes later, they score…

Guess what I hear…

5 to 10 cars honking and flashing their lights…

I could only laugh.

Then they score again… car horns and lights fill the air.

I laughed less this time.

This is still my favorite story and summarizes our friendship pretty well. He was always there for me even if he wasn’t. He always has the best intentions even if things, let’s say, don’t go exactly as planned.

I always aimed to emulate his love for my family and food, but as a kid, I did nearly everything to not be him. We were the same, down to literally the same glasses, how we walked, our sense of humor, and honestly too much when you’re a teenager. My journey started on the soccer field, just like my dad, but I wanted to do anything but cook.

I was always fascinated by math and the sciences. I wanted to be a cardiovascular surgeon. Regretted that when taking organic chemistry. Decided I wanted to help athletes and be a physical therapist. Got bored doing the same thing every day, I have a short attention span… (rabbit!).

During college I got the opportunity to do some research on rat hearts looking at heart muscle tissue and realized, I like research but don’t love dead rats. I tried a few other research labs and ended up in a lab studying the effects of footwear on walking mechanics.

While my choice to play goalie in soccer was partly due to my aversion to running, my research career paradoxically began with a focus on running mechanics. This interest naturally evolved into exploring human movement in various real-world settings, leading me to investigate how pain impacts walking in individuals with knee osteoarthritis during everyday activities. This is where I am now…

After all these years, I wanted to be different from “Pissed off Christophe” but did I do it? We joke about how I got all the good attributes from my mom and the bad from my dad, but honestly…we know it’s true.

Obviously kidding, I couldn’t imagine the man I would’ve become without him, and I am pretty happy everyone says we are the same.

Curriculum Vitae
Julien Mihy, M.S.
PhD Student
Department of Kinesiology and Applied Physiology
University of Delaware
mihyj@udel.edu

EDUCATION
Ph.D.Biomechanics and Movement Science
University of Delaware, Newark, DE
Advisor: Jocelyn F. Hafer, PhD
Dissertation Title: Assessing how walking patterns change with pain in and out of the laboratory setting
Anticipated December 2025
M.S.Kinesiology and Nutrition Sciences
University of Nevada, Las Vegas, Las Vegas, NV
Advisor: Julia Freedman Silvernail, PhD
Thesis Title: Does Wearing Multiple Pairs of Shoes Influence Injury Rates?
August 2020
B.S.Kinesiology and Nutrition Sciences
University of Nevada, Las Vegas, Las Vegas, NV
May 2018
PROFESSIONAL EXPERIENCE
2020-presentTeaching Assistant, Department of Kinesiology and Applied Physiology   University of Delaware
2022-2024Research Assistant, Department of Kinesiology and Applied Physiology   University of Delaware
2019-2020Part Time Instructor, Department of Kinesiology and Nutrition Sciences   University of Nevada, Las Vegas
2018-2020Teaching Assistant, Department of Kinesiology and Nutrition Sciences   University of Nevada, Las Vegas
2017-2018Undergraduate Teaching Assistant, Department of Kinesiology and Nutrition Sciences   University of Nevada, Las Vegas
2016-2018Undergraduate Lab Assistant, Department of Kinesiology and Nutrition Sciences   University of Nevada, Las Vegas
HONORS / AWARDS
2024University of Delaware Slobodan Jaric Travel Award
2023University of Delaware Kinesiology and Applied Physiology Dissertation Grant
PUBLICATIONS

  1. Mihy JA, Wagatsuma M, CainSM, Hafer JF. Minimizing the Effect of IMU Misplacement With a Functional Orientation Method. In review. Preprint available on medRxiv at doi: 10.1101/2022. 11.29. 22282894

  2. Murro MA, Mihy JA, Wagatsuma M, Hafer JF. Assessment of varus thrust using inertial measurement units. Clinical Biomechanics. 2025; 122:106427. doi:10.1016/j.clinbiomech.2024. 106427

  3. Wagatsuma M, Mihy JA, Cain SM, Hafer JF. Gait Kinematics Differ by Bout Duration and Setting. Gait & Posture. 2024;113:232-237. doi:10.1016/j.gaitpost.2024. 06.011

  4. Hafer JF, Mihy JA, Hunt A, Zernicke RF,Johnson RT. Lower Extremity Inverse Kinematics Results Differ Between Inertial Measurement Unit-and Marker-Derived Gait Data. Journal of Applied Biomechanics. 2023;39(3):133-142. doi:10.1123/jab. 2022-0194

PRESENTATIONS
*Indicates undergraduate mentee

Extramural

  1. Mihy JA, Wagatsuma M, Butera KA, Arch ES, Cain SM, Hafer JF. Activity-induced changes in pain and Annual Conference of the American Society of Biomechanics, 2025

  2. Wagatsuma M, Mihy JA, Miller SN, Cain SM, Hafer JF. Relationship between different bout length definitions and real-world gait kinematics. Annual Conference of the American Society of Biomechanics, 2025

  3. Miller SN, Mihy JA, Wagatsuma M, Hafer JF, Cain SM. Can stride length be accurately calculated using data from a shank-worn inertial sensor? Annual Conference of the American Society of Biomechanics, 2025

  4. Chesley, GV*, Wagatsuma M, Mihy JA, Hafer JF. Does sensor position affect spatio temporal variables calculated from IMUs on the foot?Annual Conference of the American Society of Biomechanics, 2025

  5. Mihy JA, Wagatsuma M, Miller SN, Cain SM, Hafer JF. Variability in Real-World Gait Mechanics in Response to Pain. Annual Conference of the American Society of Biomechanics, 2024

  6. Wagatsuma M, Mihy JA, Miller SN, Cain SM, Hafer JF. Do real-world gait kinematics vary by walking bout duration or time of day? Annual Conference of the American Society of Biomechanics, 2024

  7. Alvarado F, Mihy JA, Wagatsuma M, Murro MA, Hafer JF. Is Gait Consistent From the Beginning to the End of a Bout of Out-of-Lab Walking? Annual Conference of the American Society of Biomechanics, 2024

  8. Miller SN, Mihy JA, Wagatsuma M, Hafer JF, Cain SM. A Comparison of Two Sensor-Based Approaches for Calculating the Real-World Walking Speed of Older Adults With and Without Knee Osteoarthritis. Annual Conference of the American Society of Biomechanics, 2024

  9. Hafer JF, Mihy JA, Wagatsuma M, Miller SN, Cain SM. Variation in Gait Mechanics and Knee Osteoarthritis Pain During Daily Life: A Subject-Specific Analysis. Osteoarthritis Research Society International World Congress, 2024

  10. Mihy JA, Wagatsuma M, Mlecko JA, Cain SM, Hafer JF. Adults With and Without Knee Osteoarthritis Differ More on Stairs Than Level Walking. Annual Conference of the American Society of Biomechanics, 2023

  11. Wagatsuma M, Mihy JA, Cain SM, Hafer JF. Bout Duration During Out-of-Lab Walking Affects Gait Kinematics. International Society of Biomechanics, 2023

  12. Wagatsuma M, Mihy JA, Cain SM, Hafer JF. Bout Duration During Out-of-Lab Walking Affects Gait Variability. Annual Conference of the American Society of Biomechanics, 2023

  13. Murro MA, Mihy JA, Wagatsuma M, Hafer JF. Assessment of Varus Thrust Using Inertial Measurement Units. Annual Conference of the American Society of Biomechanics, 2023

  14. Alvarado F, Mihy JA, Wagatsuma M, Hafer JF. Early Stance Negative Knee Power Can Be Tracked Using IMUs. Annual Conference of the American Society of Biomechanics, 2023

  15. Mlecko, JA*, Mihy JA, Wagatsuma M, Hafer JF. Is There a Relationship Between Self-Reported Joint Health and Objective Stair Performance in Adults With Knee Osteoarthritis. American Society of Biomechanics East Coast Regional Meeting, 2023. (Undergraduate Student Poster Presentation Winner)

  16. Mihy JA, Wagatsuma M, Mlecko JA, Hafer JF. Out of Lab Stair Mechanics Differ Between Adults With and Without Knee Osteoarthritis. Osteoarthritis Research Society International World Congress, 2023

  17. Mihy JA, Wagatsuma M, Cain SM, Hafer JF. Minimizing the Effect of IMU Misplacement With a Functional Orientation Method. North American Congress of Biomechanics, 2022

  18. Wagatsuma M, Mihy JA, Cain SM, Hafer JF. Comparison of In-Lab and Out-of-Lab Gait Among Healthy Young and Older Adults and Older Adults with Knee Osteoarthritis. North American Congress of Biomechanics, 2022

  19. Mihy JA, Wagatsuma M, Cain SM, Hafer JF. Functional Alignment Reduces Placement Induced Error in IMU-Derived Metrics. Annual Conference of the American Society of Biomechanics, 2021 (virtual)

  20. Hafer JF, Hunt AJ, Mihy JA, Johnson RT. Comparison of joint angles derived from markers and IMUs using OpenSim. Annual Conference of the American Society of Biomechanics, 2021 (virtual)

  21. Wagatsuma M, Mihy JA, Cain SM, Hafer JF. Out-of-lab gait variables differ based on stride selection criteria. Annual Conference of the American Society of Biomechanics, 2021 (virtual)

  22. Mihy JA, Wiegand K, Silvernail JF. Comparisons of Running Mechanics Between Injured and Non-injured Cross-Country Runners. American College of Sports Medicine 66th Annual Meeting, 2019, Orlando, Fl.

  23. Mihy JA, Silvernail JF. Does Wearing Multiple Pairs of Shoes Influence Injury Rates? Eastern Regional Conference of the American Society of Biomechanics, 2020.

  24. Mihy JA, Borgia B, Silvernail JF. Influence of Maximalist Footwear on Preferred Running Velocity. Southwest Chapter American College of Sports Medicine Annual Meeting, 2019, Newport Beach, Ca.

Intramural

  1. Mihy JA, Wagatsuma M, Butera KA, Arch ES, Cain SM, Hafer JF. Activity-induced changes in pain and College of Health Sciences Research Day, 2025.

  2. Mihy JA, Wagatsuma M, Miller SN, Cain SM, Hafer JF. In Lab Gait Speeds Represent a Small Portion of Real-World Gait Speeds. College of Health Sciences Research Day, 2024.

  3. Chesley, GV*, Wagatsuma M, Mihy JA, Hafer JF. Does In-Lab Gait Speed Relate to Real-World Pain or Fatigue? College of Health Sciences Research Day, 2024.

  4. Menzer K*, Mihy JA, Wagatsuma M, Hafer JF. Exploring Sparse Inertia lMeasurement Unit Setups for Out-of-Lab Gait Kinematics. University of Delaware INBRE Summer Scholars Symposium,2023 (Delaware INBRE Summer Scholars Science Communication Award)

  5. Mihy JA, Wagatsuma M, Mlecko JA, Hafer JF. Out of Lab Stair Mechanics Differ Between Adults With and Without Knee Osteoarthritis. College of Health Sciences Research Day, 2023.

  6. Wagatsuma M, Mihy JA, Hafer JF. Bout Duration During Out-of-Lab Walking Affects Gait Kinematics. College of Health Sciences Research Day, 2023.

  7. Mlecko, JA*, Mihy JA, Wagatsuma M, Hafer JF. Is There a Relationship Between Self-Reported Joint Health and Objective Stair Performance in Adults With Knee Osteoarthritis. College of Health Sciences Research Day, 2023.

  8. Chesley, GV*, Wagatsuma M, Mihy JA, Hafer JF. Comparing Gait Between Young and Older Adults Using IMUs and Optical Motion Capture. College of Health Sciences Research Day.

  9. Mihy JA, Wagatsuma M, Hafer JF. Comparing Reliability of IMU Alignment Techniques on Segment Motion. College of Health Sciences Research Day, 2022.

  10. Wagatsuma M, MihyJA, Hafer JF. Comparison of In-Laband Out-of-Lab Gait Among Healthy Young and Older Adults and Older Adults with Knee Osteoarthritis. College of Health Sciences Research Day, 2022.

  11. Argudo F*, Mihy JA, Wagatsuma M, Hafer JF. Comparison of Gait Variables Between Early and Late Stages of a 13-Minute Walk. University of Delaware INBRE Summer Scholars Symposium, 2021

  12. Mihy JA, Wiegand K, Silvernail JF. Comparisons of Running Mechanics Between Injured and Non-injured Cross-Country Runners. Graduate Research Forum, 2020

  13. Mihy JA, Iwatsuki T. Wingate cycle: Does power pose have an effect?UNLV Undergraduate Slam, 2017

FUNDING
R21AG076989     Hafer (PI)     05/15/22-02/28/25
NIH-NIA
Title: Understanding how age, knee osteoarthritis, and symptoms influence the structure and variance of real-world gait mechanics.
Purpose: To establish foundational knowledge of real-world gait mechanics and the impact of common knee osteoarthritis symptoms (pain & fatigue) on daily gait mechanics.
Role: Graduate student researcher
PROFESSIONAL MEMBERSHIPS
2024-presentNIH HEAL Initiative | PURPOSE Network
2023-presentOsteoarthritis Research Society International
2020-presentAmerican Society of Biomechanics
2018-presentAmerican College of Sports Medicine
LEADERSHIP
2018-2025National Biomechanics Day activities
Plan and run activities
University of Delaware; University of Nevada, Las Vegas
2022-2024University of Delaware American Society of Biomechanics Student Chapter Treasurer
University of Delaware
MENTORING
Undergraduate:
Charles Friedel2024-present, University of Delaware
Erika Juergensen2024-present, University of Delaware
Andrew Gorski2023-2024, University of Delaware
Kathleen Downs2023-present, University of Delaware
Kate Menzer2023 INBRE Summer Scholar
Ryan O’Neill2022-2023, University of Delaware
Grace Chesley2021-2025, University of Delaware
2024 INBRE Summer Scholar
2024 CHS Research Day Poster presentation
2023 CHS Research Day, American Society of Biomechanics East Poster presentations
Jenna Mlecko2021-2023,University of Delaware
2023 CHS Research Day, American Society of Biomechanics East Poster presentation
Kelly Young2021-2022, University of Delaware
Fernanda Argudo2021 University of Delaware
INBRE Summer Scholar
Satvika Kadiyala2020-2021, University of Delaware
Andrew Hunt2020 INBRE Summer Scholar

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