A new robotic approach to characterize mechanical impedance and energetic passivity of the human ankle during standing. - Varun Nalam; Hyunglae Lee (EMBC, 2017)

Design and validation of a multi-axis robotic platform for the characterization of ankle neuromechanics. - Varun Nalam; Hyunglae Lee (ICRA, 2017)

Environment-Dependent Modulation of Human Ankle Stiffness and its Implication for the Design of Lower Extremity Robots. - Varun Nalam; Hyunglae Lee (UR, 2018)

User Controlled Interface for Tuning Robotic Knee Prosthesis. - Abbas Alili; Varun Nalam; Minhan Li; Ming Liu 005; Jennie Si; He Helen Huang (IROS, 2021)

Quantification and Modeling of Ankle Stiffness During Standing Balance. - Varun Nalam; Ermyntrude Adjei; Hyunglae Lee (IEEE Trans. Biomed. Eng., 2021)

Admittance Control Based Human-in-the-Loop Optimization for Hip Exoskeleton Reduces Human Exertion during Walking. - Varun Nalam; Xikai Tu; Minhan Li; Jennie Si; He Helen Huang (ICRA, 2022)

Design of EMG-driven Musculoskeletal Model for Volitional Control of a Robotic Ankle Prosthesis. - Chinmay Shah; Aaron Fleming; Varun Nalam; Ming Liu 005; He Helen Huang (IROS, 2022)

Design of EMG-driven Musculoskeletal Model for Volitional Control of a Robotic Ankle Prosthesis. - Chinmay Shah; Aaron Fleming; Varun Nalam; He Huang (CoRR, 2022)

Understanding Modulation of Ankle Stiffness During Stance Phase of Walking on Different Ground Surfaces. - Varun Nalam; Clayton Bliss; Joshua B. Russell; Omik M. Save; Hyunglae Lee (IEEE Robotics Autom. Lett., 2022)

Imposing Healthy Hip Motion Pattern and Range by Exoskeleton Control for Individualized Assistance. - Qiang Zhang 028; Varun Nalam; Xikai Tu; Minhan Li; Jennie Si; Michael D. Lewek; He Helen Huang (IEEE Robotics Autom. Lett., 2022)

Closed-Loop Feedback Control of Human Step Width During Walking by Mediolaterally Acting Robotic Hip Exoskeleton. - Abbas Alili; Varun Nalam; Aaron Fleming; Ming Liu 005; Jesse C. Dean; He Helen Huang (IROS, 2023)

A Wearable Robotic Rehabilitation System for Neuro-Rehabilitation Aimed at Enhancing Mediolateral Balance. - Zhenyuan Yu; Varun Nalam; Abbas Alili; He Helen Huang (IROS, 2023)

Exploring the Impact of Continuous Mediolateral Torque Application by Hip Exoskeleton on the Gait Balance of Non-Disabled Individuals. - Abbas Alili; Varun Nalam; Joshua R. Tacca; He Helen Huang (EMBC, 2024)

Abduction/Adduction Assistance From Powered Hip Exoskeleton Enables Modulation of User Step Width During Walking. - Abbas Alili; Aaron Fleming; Varun Nalam; Ming Liu 005; Jesse C. Dean; He Huang 002 (IEEE Trans. Biomed. Eng., 2024)

Effects of Hip Adduction-Abduction Exoskeleton-Controlled Step Width on Mediolateral Gait Balance During Walking. - Soe Lin Paing; Abbas Alili; Varun Nalam; He Helen Huang (ICORR, 2025)