The importance of biarticular actuation is one of the many biomechanical mysteries of human locomotion. This is of paramount importance to individuals with trans-tibial amputation who lose the function of the gastrocnemius, which actuates the ankle and knee joint simultaneously. Karl Zelik and his team at Vanderbilt University are leveraging emulation to systematically explore these relationships, expanding our knowledge of this essential physiology and informing the design of future wearable systems that could utilize biarticular actuation to deliver greater energetic and other benefits to individuals.
In today’s workforce status quo, certain jobs inevitably come with a higher risk for bodily injury. Warehouse operators, construction workers, health care workers, agricultural workers, and many essential jobs require lifting, bending, and repetitive movement that can strain the back and body.
Featured Research Publications
Combining an Artificial Gastrocnemius and Powered Ankle Prosthesis: Effects on Transtibial Prosthesis User Gait
Ziemnicki D, McDonald K, Wolf D, Molitor S, Egolf J, Gupta M, Zelik K. (2023) National Library of Medicine.
Development and evaluation of a prosthetic ankle emulator with an artificial soleus and gastrocnemius
Ziemnicki DM, Caputo JM, McDonald KA, Zelik KE. (2021) Journal of Medical Devices.