Image of Karl Zelik

Karl Zelik

Associate Professor of Mechanical Engineering

Expert on exoskeletons, human movement, biomechanics and prosthetic limbs

Biography

Zelik's goal is to improve health, mobility and independence for individuals with physical disabilities, and to enhance human capabilities beyond natural biological limits, through advances in movement science and assistive technology. His lab perform research on a range of topics, from investigating fundamental mechanisms underlying legged locomotion to translating biomechanical principles into improvements in technologies such as prosthetic limbs, exoskeletons, wearables and smart clothing. They strive to develop devices that better integrate with the human body and better augment human capabilities and performance. We also seek to develop new measurement tools and analysis methods to deepen our understanding of human movement biomechanics. The Zelik Lab is housed within Vanderbilt CREATE (Center for Rehabilitation Engineering and Assistive Technology). They perform experimental and computational research on human locomotion by combining techniques and knowledge from engineering, biomechanics, bio-signal analysis, neuromotor control and clinical practice. Their interdisciplinary research is performed directly alongside clinical doctors — many of whom have offices within short walking distance of our lab — and in collaboration with other engineers and scientists. To study human movement we use state-of-the-art measurement equipment, including an infrared motion capture system, force-instrumented treadmill, portable respirometry system, ultrasound imaging and an electromyographic (muscle activity) measurement system. Research projects in their lab range from designing, building and testing wearable assistive devices to developing new experimental approaches for assessing the biomechanics of human performance to conducting computational simulations to better elucidate fundamental principles underlying locomotion.

Media Appearances

  • Chadwick Boseman’s Black Panther gives a boost to diversity in STEM – a Black engineer’s take on personal and professional inspiration

    Chadwick Boseman played a superhero on the big screen, but he had a real-life superpower – the ability to inspire the next generation of underrepresented scientists, engineers and innovators. He was one of many people lost too soon in 2020, but his legacy will live on.

    January 8th, 2021

  • This wearable could help you avoid shin splints forever

    New research, led by Vanderbilt assistant professor of mechanical and biomedical engineering and physical medicine & rehabilitation Karl Zelik, proposes taking an innovative and practical approach to measuring this internal stress that could help runners better monitor and even prevent shin splints. The findings were recently published in the journal Human Movement Science.

    November 10th, 2020

  • Startup looks to help millions of Americans suffering from back pain

    “With a simple press of the button, you’re able to engage the assistance,” said Karl Zelik, Ph.D., an engineering professor at Vanderbilt University who is now the chief scientific officer of HeroWear, a new company with a mission of creating exoskeleton technology for everyone.

    October 27th, 2020

  • An Innovative Robotic Exosuit Boosts both Walking and Running

    “This study builds upon the research team’s prior success in developing ankle-assist devices by showing benefits can also be achieved through hip assistance,” says Karl Zelik, an assistant professor of mechanical engineering at Vanderbilt University and chief scientific officer at HeroWear, a company that is currently developing lift-assist exosuits. As an expert who did not participate in the recent study, he described its results as “promising.”

    August 16th, 2019

  • The future has arrived. Want proof? Check out these amazing robotic exoskeletons

    “The device uses a novel under-the-foot clutch mechanism that we invented, and an extension spring that acts in parallel with the user’s calf muscles,” Professor Karl Zelik, who worked on the project, told Digital Trends. “As a person walks, some of the force that typically goes through their muscles is redirected and goes through the assistive spring instead. This reduces the muscle force and effort needed to walk.”

    June 11th, 2019

  • It’s 2019 – where’s my supersuit?

    But what about the physical superpowers? I wanted those, too – like superhuman endurance or strength. Those may not be too far behind: I’m working on them in Vanderbilt’s Center for Rehabilitation Engineering & Assistive Technology. Humanity has begun to enter the age of wearable exoskeletons and exosuits that offer support and strength to people’s bodies.

    April 24th, 2019

  • Study Finds Wearable Devices Not Effective for Forecasting Stress Fractures

    "First and foremost, we want to track something on the loading of some bones, on the bone in your foot, on the bone in your shank and we want to look at how that might be leading to the accumulation of these microcracks in the bone," Zelik said. "If want to estimate the loading then we need to find a way to use wearable sensors and estimate the loading on these structures like bones and muscles inside the body, as opposed to estimating the loading between your foot and the ground."

    February 13th, 2019


Education

Ph.D., University of Michigan

M.S., Washington University

B.S., Washington University



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