"Biomechanical Analysis of Weighted Lifting With an Active Knee Exoskeleton" published in IEEE ACCESS

View profile for Tommaso Lenzi

Associate Professor, Director HGN Lab

🚨 New Publication 🚨 I’m excited to share our latest paper, “A Biomechanical Analysis of Weighted Lifting With an Active Knee Exoskeleton,” just published in IEEE ACCESS. Manual material handlers—people who #lift and #move objects for a living—experience some of the highest rates of #workplace #injuries, often due to musculoskeletal strain. While #exoskeletons have been proposed as a solution, most prior studies focused on back support and lacked detailed biomechanical analysis at the joint level. This study presents the first comprehensive motion-capture and electromyography study of powered knee exoskeletons during lifting tasks. With rigorous measurements of joint torques, powers, and muscle activity, we found that: 🔹 Peak quadriceps activation decreased by ~30% with the exoskeleton. 🔹 Biological knee torque was reduced by over 50%. 🔹 Importantly, assistance at the knees also reduced effort at the ankles—without shifting strain to the hips or back. These results show that powered knee exoskeletons can help #workers maintain safer, knee-centric lifting strategies while reducing fatigue and injury risk. Beyond advancing fundamental science, our work points toward a future where exoskeletons may become #protective #equipment for workers, much like helmets and gloves today. Congratulations to the whole team! Margaret Meagher Grace Hunt Brendon Ortolano Lukas Gabert Bo Foreman Link to the open-access study in the comments! University of Utah John and Marcia Price College of Engineering University of Utah Robotics Center University of Utah Research The Rocky Mountain Center for Occupational and Environmental Health (RMCOEH)

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Tommaso Lenzi

Associate Professor, Director HGN Lab

3w

"A Biomechanical Analysis of Weighted Lifting With an Active Knee Exoskeleton” https://ieeexplore.ieee.org/abstract/document/11098919

Deepak Pandey

PhD @ IIT Kanpur .. Soft-Human-Robot-Interaction, Soft sensors, Actuators, Wearable robotics || Reconfigurable robotics || M.Tech.(Mechatronics) CSIR-CMERI ll Human Centred Robotics &Cybernetics Group

3w

Congratulations prof. Tommaso Lenzi and team

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I'm interested in your research, but I don't know if the knee exoskeleton disrupts the worker's balance?

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Itzel Fer, MD

PM&R Physician | I help busy clinicians stay updated on AI in Rehabilitation Medicine & LLMs | 30+ hrs of research distilled into 5 min → Get insights for clinicians on what matters in AI | Straight to your inbox.

3w

Congratulations!

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Alexander Šemetev

PhD (EU); Author of 12 books in economics and finance; 3 of these books written automatically by the computer program I created

2w

😊 👍

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Michael Whelan

I help Mid-sized Advanced Mfg CEOs and APAC Heads out-hire larger rivals (without the teeth grinding part) | Bespoke searches, personally delivered, no hiccups | 27 Yrs | New-hire Performance Guarantee

3w

Really impressive and fundamental work. Kudos!

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