Dr. Ashutosh Tiwari

Assistant Professor Grade-II,

✉ ashutosht@iitkgp.ac.in
☎ 03222 214998 / INTERNAL: 84998

My research group focuses on enhancing walking performance in healthy and disabled populations with impaired gait. The core of this work is to develop personalized task-oriented wearable gait training systems that guide the user in modifying their gait biomechanics towards improved walking performance. To personalize these training devices this work aims to develop a method based on a human-in-loop AI data-driven optimization model to optimize the training parameter of the system based on the multi-objective function criterion for each individual separately. In addition, to make training accessible to everyone this work aims to develop wearable robot-assisted and user-guided biofeedback training systems that provide beyond-laboratory gait training solutions for home-based training for the people from remote areas having limited accessibility to the rehabilitation clinics in cities. Overall, this work provides a complete solution to enhance walking performance by maximizing the gait training outcome in terms of its speed, effectiveness, and accessibility. I am also interested in developing wearable gait biomechanical sensing devices using off-the-shelf sensors and signal processing pipelines for gait monitoring/assessment and to quantify the effect of rehabilitation efforts. I am also interested in developing gait assistive devices such as orthosis, exoskeleton, and prosthesis and machine learning methods for gait activity classification for assistive device control applications. I am also interested in understanding human motor adaptation mechanisms during goal-oriented gait training using controlled human subject experiments.

Research Areas

Prosthetics and Exoskeleton

Wearable Assistive Devices

Biomedical Instrumentation Human Gait Biomechanics

Biomedical Signal Processing

Artificial Intelligence and Machine Learning

Projects

Current Projects (As Principal Investigator)
Current Projects (As Co Principal Investigator)
Completed Projects (As Principal Investigator)

Publications

Selected Publications

A. Tiwari and D. Joshi, "Design and Validation of a Real-Time Visual Feedback System to Improve Minimum Toe Clearance (mTC) in Transfemoral Amputees," in IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 29, pp. 1711-1722, 2021, doi: 10.1109-TNSRE.2021.3105139.

A. Tiwari and D. Joshi, "An Infrared Sensor-Based Instrumented Shoe for Gait Events Detection on Different Terrains and Transitions," in IEEE Sensors Journal, vol. 20, no. 18, pp. 10779-10791, 15 Sept.15, 2020, doi: 10.1109-JSEN.2020.2994956.

A. Tiwari and D. Joshi, "Template-Based Insoles for the Center of Pressure Estimation in Different Foot Sizes," in IEEE Sensors Letters, vol. 4, no. 8, pp. 1-4, Aug. 2020, Art no. 6001804, doi: 10.1109-LSENS.2020.3010373.

R. Bajpai, A. Tiwari, A. Jain and D. Joshi, "A Novel Instrumented Outsole for Real-Time Foot Kinematic Measurements: Validation Across Different Speeds and Simulated Foot Landing," in IEEE Transactions on Instrumentation and Measurement, vol. 71, pp. 1-10, 2022, Art no. 2003310, doi: 10.1109-TIM.2022.3175265.

R. Khatavkar, A. Tiwari, P. Bhat, A. K. Srivastava, S. S. Kumaran and D. Joshi, "A Novel Kinematic Gait Parameter-Based Vibrotactile Cue for Freezing of Gait Mitigation among Parkinson's Patients: A Pilot Study," in IEEE Transactions on Haptics, doi: 10.1109-TOH.2024.3378917.

Awards