Research Areas
Sports engineering / Biomechanics / Motor control / Robotics / Nonlinear dynamics / Motor neuroscience
Teaching
Introduction to sports engineering, Mechanics of human movement, Introduction to theories in biomechanics, Biomechanics of lower extremities, Laboratory techniques in sports engineering, Optimization theories in human movements
Education
- Ph.D., MIT
Department of Mechanical Engineering(GPA 5.0/5.0) - MS, MIT
Department of Mechanical Engineering(GPA 5.0/5.0) - BS (with Summa cum laude honor), Seoul National University
Department of Mechanical & Aerospace Engineering
Professional Career
- Associate Professor, Dept. of Physical Education
Seoul National University 2020.9-present - Director
Korean Society of Sport Biomechanics 2019.4-present - Assistant Professor, Dept. of Physical Education
Seoul National University 2016.9-2020.8 - Assistant Professor, Dept. of Mechanical Engineering
University of Victoria 2014-2016. 8 - Post-Doctoral Associate
Northeastern University 2014 - MIT 2011-2014
- Research Staff
Providence VA Medical Center 2010-2012 - Engineering Designer
Hyundai Heavy Industries, Dept. of Special & Naval Shipbuilding 2001-2004
Publications
[Peer-reviewed journal papers] (*: corresponding author)
- S. B. Panday, P. Pathak, J. Ahn*, “Professional long distance runners achieve high efficiency at the cost
of weak orbital stability”, Helyon, 2024 - O. Save, S. Das, E. Carlson, J. Ahn, H. Lee*, “Human gait entrainment to soft robotic hip perturbation during simulated overground walking”, IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2024
- P. Pathak, J. Ahn*, “Application of vibration to the soles increases long-range correlations in the stride parameters during walking ”, Heliyon, 2023
- C. Lee, J. Ahn*, BC. Lee*, “A systematic review of the long-term effects of using smartphone- and tablet- based rehabilitation technology for balance and gait training and exercise programs”, Bioengineering, 2023
- P. Pathak, HS. Kim, H. Kim, J. Park, G. Lee, J. Ahn*, “Feasibility of mitigating out-toeing gait using compression tights with inward-directing taping lines”, Public Library of Science ONE (PLoS ONE), 2023
- J. Lee, I. Park, J. Ahn*, “Noise-robust estimation of the maximal Lyapunov exponent based on state space reconstruction with principal components”, Chaos, Solitons & Fractals, 2023
- B. Lee*, J. Choi, J. Ahn, B. Martin, “The different contributions of the eight prefrontal cortex subregions to reactive responses after unpredictable slip perturbations and vibrotactile cueing”, Frontiers in Human Neuroscience, 2023
- A. Nasirzadeh, J. Yang, S. Yang, J. Yun, Y. Bae, J. Park, J. Ahn, G. Lee*, “The effects of a custom-designed high-collar shoe on muscular activity, dynamic stability, and leg stiffness: a biomimetic approach study”, Biomimetics, 2023
- A. Nasirzadeh, S. Yang, J. Yun, J. Yang, Y. Bae, J. Park, J. Ahn, G. Lee*, “Influence of circumferential ankle pressure of shoe collar on the kinematics, dynamic stability, electromyography, and plantar pressure during normal walking”, Public Library of Science ONE (PLoS ONE), 2023
- P. Pathak, J. Ahn*, “Taping-induced cutaneous stimulation to the ankle tendons reduces minimum toe clearance variability”, Heliyon, 2023
- J. Moon, P. Pathak, S. Kim, S. Rho, C. Rho, Y. Shim, J. Ahn*, “Supra-threshold vibration applied to the foot soles enhances jump height under maximum effort”, Public Library of Science ONE (PLoS ONE), 2022
- J. Kwon, I. Choi, M. Park, J. Moon, B. Jeong, P. Pathak, J. Ahn, YL. Park*, “Selectively stiffening garments enabled by cellular composites”, Advanced Materials Technologies, 2022
- P. Pathak, J. Moon, S. Rho, C. Rho, Y. Shim, J. Ahn*, “Application of vibration to the soles reduces minimum toe clearance variability during walking”, Public Library of Science ONE (PLoS ONE), 2022
- P. Pathak, S. B. Panday, J. Ahn*, “Artificial neural network model effectively estimates muscle and fat mass using simple demographic and anthropometric measures”, Clinical Nutrition, 2022
- S. Yun, K. Kim, J. Ahn*, K. J. Cho*, “Body-powered variable impedance: an approach to augmenting human with a passive device by reshaping lifting posture”, Science Robotics (IF = 27.541), 2021
- BG. Lim, H. Kim, JH. Bae, JW. Seo, SE. Kwak, CY. Shin, J. Ahn, W. Song*, “Effect of masticatory movement using gum on walking and cycling: a randomized crossover design”, Exercise Science, 2021
- P. Pathak, J. Ahn*, “A pressure-pad-embedded treadmill yields time-dependent errors in estimating ground reaction force during walking”, Sensors, 2021
- S. Cheon, D. Kim, S. Kim, B. B. Kang, J. Lee, H. S. Gong, S. Jo, K. J. Cho*, J. Ahn*, “Single EMG sensor-driven robotic glove control for reliable augmentation of power grasping”, IEEE Transactions on Medical Robotics and Bionics, 2021
- P. Pathak, S. B. Panday, B. K. Jung, J. Ahn*, “Analysis of the aging-induced changes in the motor ability structure using large population fitness test results”, Aging, 2021
- H. Joung, J. Park, J. Ahn, M. Park*, Y. Lee*, “Effects of creative dance-based exercise on gait performance in adolescents with cerebral palsy”, Journal of Exercise Rehabilitation, 2020
- J. Lee, K. Cho, J. Ahn, Y. Nam, M. Yun*, “Usability evaluation for South Korean military backpack based on context of use”, Human Factors and Ergonomics in Manufacturing & Service Industries, 2020
- J. Moon, P. Pathak, S. Kim, S. Rho, C. Rho, Y. Shim, J. Ahn*, “Shoes with active insoles mitigate declines in balance after fatigue”, Scientific Reports, 2020
- A. Tielke, J. Ahn*, H. Lee, “Non-ideal behavior of a treadmill depends on gait phase, speed, and weight”, Scientific Reports, 2019
- S. B. Panday, P. Pathak, J. Moon, J. Ahn*, “Aging induces a step-like change in the motor ability structure of athletes”, Aging, 2019
- J. Park, J. Ahn*, H. Moon, Y. Kim, H. Um, “Analysis of relationship among physical fitness measurement factors in high school students using PAPS”, Secondary Education Research, 2017
- J. Lee, J. Song, J. Ahn, J. Park*, “The effect of short- term muscle vibration on knee joint torque and muscle firing patterns during a maximal voluntary isometric contraction”, Korean Journal of Sports Biomechanics, 2017
- J. Ahn*, Z. Zhang, D. Sternad, “Noise induces biased estimation of the correction gain”, Public Library of Science ONE (PLoS ONE), 2016
- J. Ahn*, N. Hogan, “Improved assessment of orbital stability of rhythmic motion with noise”, Public Library of Science ONE (PLoS ONE), 2015
- J. Ahn*, N. Hogan, “Long-range correlations in stride intervals may emerge from non-chaotic walking dynamics”, Public Library of Science ONE (PLoS ONE), 2013
- J. Ahn*, N. Hogan, “A simple state-determined model reproduces entrainment and phase-locking of human walking”, Public Library of Science ONE (PLoS ONE), 2012
- J. Ahn*, N. Hogan, “Walking is not like reaching: Evidence from periodic mechanical perturbations”, Public Library of Science ONE (PLoS ONE), 2012
[Books and Chapters]
- H. I. Krebs, A. Roy, P. Artemiadis, J. Ahn, and N. Hogan, “Beyond human or robot administered treadmill training”, at Neurorehabilitation Technology, Dietz Volker, Nef Tobias, Rymer William Zev (Editors), pp. 233-252, Springer London, 2012. ISBN: 978-1-4471-2277-7
[Peer-reviewed conference papers] (*: corresponding author, underline: presenter)
- S. Hong, H. Kim, J. Ahn*, W. Park*, “Impacts of disability duration and physical activity level on
wheelchair propulsion strategies in people with T12/L1 spinal cord injury”, HFES International Annual
Meeting, 2024 - D. Yoo, C. Lee, J. Ahn*, BC. Lee*, “Age-related adaptation of the body’s kinematic responses to unpredictable trip perturbations induced by a split-belt treadmill”, International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2023
- J. Cho, E. Choi, S. Cheon, SW. Hwang, J. Ahn*, “Effects of calf anchoring compression levels on ankle kinematics, motor unit behavior, energy cost, and discomfort during walking”, Conference of the International Society of Biomechanics in Sports (ISBS), 2023 (New Investigator Award Finalist)
- B. Kim, J. Ahn*, “Real-time prediction of failure in resistance training: application to arm curl”, Conference of the International Society of Biomechanics in Sports (ISBS), 2023 (New Investigator Award, 2nd Place)
- C. Lee, J. Ahn*, “Real-time backward slip detection using a slip-inducing system and machine learning methods”, Conference of the International Society of Biomechanics in Sports (ISBS), 2023
- D. Yoo, C. Lee, J. Ahn, BC. Lee*, “Association between age and body’s kinematic responses to unpredictable gait perturbation”, Conference of the International Society of Biomechanics in Sports (ISBS), 2023
- H. Kim, J. Ahn*, “Accute effects of shoe conditions on foot strike pattern on runners with different habitual patterns”, Conference of the International Society of Biomechanics in Sports (ISBS), 2023
- C. Lee, J. Ahn*, “Real-time slip detection using a fall-inducing system and machine learning methods”, International Conference of Korean Society of Sport Biomechanics, 2022 (The Best Oral Presentation Award)
- H. Kim, Y. Choi, K. Kim, S. Chung, H. Lee, J. Ahn*, “Quantifying the effect of 3D printed footwear soles on foot pressure distribution”, International Conference of Korean Society of Sport Biomechanics, 2022 (The Best Poster Presentation Award)
- B. Kim, J. Ahn*, “Failure prediction model in resistance training: application to arm curl”, International Conference of Korean Society of Sport Biomechanics, 2022
- P. Pathak, J. H. Park, J. Ahn*, “A pilot study assessing effects of taping the ankle tendons on postural control under unpredictable perturbation”, Conference of the International Society of Biomechanics in Sports (ISBS), 2022
- P. Pathak, J. Moon, S. Rho, C. Rho, Y. Shim, J. Ahn*, “Effect of vibration to the soles of feet on the minimum toe clearance during walking”, International Conference of Korean Society of Sport Biomechanics, 2021 (The Best Presentation Award)
- H. Kim, J. Ahn*, “Effects of performance boosting running shoes on muscle and joint loads”, International Conference of Korean Society of Sport Biomechanics, 2021 (Excellent Presentation Award)
- H. Xia, J. Kwon, P. Pathak, J. Ahn, P. Shull, Y. Park *, “Design of a multi-functional soft ankle exoskeleton for foot-drop prevention, propulsion assistance, and inversion/eversion stabilization”, IEEE International Conference on Biomedical Robotics and Biomechatronics (BioRob), 2020
- J. Lee*, D. Hyun, J. Ahn, S. Kim, N. Hogan, “On the dynamics of a quadruped robot model with impedance control; self-stabilizing high speed trot-running and period-doubling bifurcations”, IEEE International Conference on Intelligent Robots and Systems (IROS), 2014
- J. Ahn*, N. Hogan, “Is estimation of Floquet multipliers of human walking valid?”, IEEE Northeast Bioengineering Conference (NEBEC), 2014
- J. Ahn*, D. Klenk, N. Hogan, “A simple bipedal walking model reproduces entrainment of human locomotion”, IEEE International Conference on Robotics and Automations (ICRA), 2012
- J. Ahn*, T. Patterson, H. Lee, D. Klenk, A. Lo, H. I. Krebs, N. Hogan, “Feasibility of dynamic entrainment with ankle mechanical perturbation to treat locomotor deficits of neurologically impaired patients”, International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
2011 - H. Lee*, T. Patterson, J. Ahn, D. Klenk, A. Lo, H. I. Krebs, N. Hogan, “Static ankle impedance in stroke and multiple sclerosis: Feasibility study”, International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2011
- J. Ahn*, N. Hogan, “Feasibility of dynamic entrainment with ankle mechanical perturbation to treat human locomotor deficits”, International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2010
- J. Ahn*, N. Hogan, “The basin of entrainment of human gait under mechanical perturbation”, ASME Dynamic System and Control Conference (DSCC), 2008
[Conference Presentations]
- J. Moon, J. Ahn*, “Validity and reliability of estimation of orbital stability of human gait”, American Society of Biomechanics, 2024
- O. Save, S. Das, E. Carlson, A. Kruse, J. Ahn, H. Lee*, “Effects of the magnitude of mechanical perturbations using soft robots on human gait entrainment”, American Society of Biomechanics, 2024
- T. Park. I. Park, J. Moon, J. Ahn*, “Gait transition between walk and run secures the orbital stability of locomotion”, American Society of Biomechanics, 2024
- J. H. Ahn, H. Jung, J. Moon, J. Ahn*, “A multifaceted evaluation of a passive exoskeleton for load handling assistance”, American Society of Biomechanics, 2024
- E. Choi, I. Park, J. Ahn*, “Effects of external hand force modeling on validity of inverse analysis of lifting”, American Society of Biomechanics, 2024
- H. Kim, S. Hong, W. J. Park, J. Ahn, “Analysis of wheelchair propulsion patterns in wheelchair users with various spinal cord injury levels: a study on strategy development through bottom-up classification”, International Conference of Korean Society of Sport Biomechanics, 2023 (Excellent Oral Presentation Award)
- J. H. Ahn, J. Ahn, “Assessment of a muscular assistance effect of a passive exoskeleton for industrial workers”, International Conference of Korean Society of Sport Biomechanics, 2023 (Excellent Oral Presentation Award)
- S. Hong, H. Kim, J. Ahn, W. J. Park, “Duration of disability, professional experience in sports, and wheelchair propulsion strategy in people with spinal cord injury: case study”, Conference of Korean Society of Biomechanics, 2023
- H. Kim, J. Ahn, “The effects of habitual foot strike pattern and footwear on running pattern and economy”, Congress of the International Society of Biomechanics, 2023
- J. Ahn, “New Approaches to Quantification and Improvement of Walking”, Conference of Korean Academy of Rehabilitation Medicine, 2023 (Invited)
- J. Ahn, “Towards better performance, better assistance and better quantification”, International Conference of Korean Society of Sport Biomechanics, 2022 (Invited)
- J. Ahn, “Enhancing human motor performance with simple, compact, light but smart garments”, Conference of Korean Society of Rehabilitation Robot, 2022 (Invited)
- J. Ahn, “Augmentation of human motor performance through simple, compact, light but smart garments and proper quantification”, International Conference of Korean Society of Sport Biomechanics, 2021 (Invited)
- Y. Hong, D. Koo, H. Kim, J. Cho, J. Ahn, J. Park, “The effect of back-loaded distribution on metabolic energy and subjective fatigue: an ergonomic evaluation for the development of a new personal protective respirator”, International Textile and Apparel Association (ITAA) Conference, 2021
- P. Pathak, J. Ahn, “Vertical ground reaction force recorded using Zebris treadmill during walking declines over time”, American Society of Biomechanics (ASB), 2021
- S. Kim, J. Moon, Y. Lee, S. Park, S. Koo, J. Ahn, “Design of compression sleeve and the evaluation of the improvement in output torque and EMG”, The Korean Society of Clothing and Textiles, 2021
- J. Ahn, “Quantification and augmentation of human motor performance through sports engineering”, Global Sports AIX Conference, 2020 (Invited)
- J. Ahn, “Sports engineering can contribute to establishing policies and promoting participation in sports”, Sports Industry Global Conference, 2020 (Keynote)
- Y. Kim, D. Koo, N. Shin, J. Ahn, Y. Nam, “Analysis of the difference in breast displacement and trajectory in Korean”, International Conference on Clothing and Textile (ICCT), 2020
- J. Ahn, “Application of sports engineering”, Conference of Korean Society of Sports Biomechanics, 2019 (Invited)
- J. Ahn, “Assessment of walking stability using nonlinear dynamics”, SNU Orthopedic Update, 2019 (Invited)
- D. Koo, N. Shin, J. Ahn, Y. Nam, Y. Kim “Analysis of the breast displacement with different types of underwear”, Conference of the Ergonomics Society of Korea, 2019
- J. Ahn, “Unbiased measure of stability of movement”, Korea Robotics Society Annual Conference, 2018
- J. Ahn, “Human movement and science”, Korea Science and Technology Annual Meeting, 2018 (Invited)
- J. Park, J. Lee, H. Yang, S. Yoon, J. Lee, C. Lee, Y. Kang, J. Moon, S. Kim, K. Cho, M. Yoon, J. Ahn, Y. Nam “Analysis and extraction of the anthropometric data for ergonomic design of military backpack”, Conference of the Ergonomics Society of Korea, 2018
- J. Ahn, “Unbiased Quantification of Human Motor Performance”, 51st Conference of Korean Society of Sports Medicine, 2017 (Invited)
- J. Ahn, “The role of the brain in exercise”, Conference of Korean Society of Sports Psychology, 2017 (Keynote)
- J. Ahn, “Information technology and TKD”, The 7th Global Taekwondo Leaders Forum, 2017 (Keynote)
- J. Ahn, “Unbiased estimation of the stability of periodic motion”, 4th SNUBH Rehabilitation Science and Technology Symposium and Workshop, 2017 (Invited)
- J. Ahn, “New insights into stability of human walking”, International Conference of Korean Society of Sport Biomechanics, 2016 (Keynote)
- J. Ahn, “Towards better quantification and better understanding of human movements” DGIST Global Innovation Festival, 2016 (Invited)
- J. Ahn, N. Hogan, “A highly simplified model explains salient features of human walking”, IEEE International Conference on Intelligent Robots and Systems (IROS), 2013
- J. Ahn, D. Klenk, N. Hogan, “The contribution of neuro-mechanical oscillators to human walking: Variability is essential”, Dynamic Walking, 2012
- J. Ahn, N. Hogan, “A simple walking model without supra-spinal control reproduces entrainment to mechanical perturbation”, Neuroscience 2010
- J. Ahn, N. Hogan, “Feasibility of dynamic entrainment with ankle mechanical perturbation to treat human locomotor deficits”, World Congress for Neuro-Rehabilitation (WCNR), 2010
- J. Ahn, N. Hogan, “Roles of impact in stability of walking”, Neuroscience 2009
- J. Ahn, N. Hogan, “Feasibility of dynamic entrainment with ankle mechanical perturbation to treat human locomotor deficits”, Neuroscience 2008
- J. Ahn, N. Hogan, “The basin of entrainment of human gait under mechanical perturbation”, Society of Engineering Science Annual Technical Meeting, 2008
- J. Ahn, H. I. Krebs, B. T. Volpe, N. Hogan, “Feasibility of training to recover balance and mobility with robotic assistance confined to the ankle”, New York State Spinal Cord Injury Research Program Symposium, 2008
[Invited Seminar]
- J. Ahn, “Towards better evaluation of wearable robots”, Soft Robot Symposium and Soft Robotics Research Center Workshop, 2024
- J. Ahn, “Sports engineering and technologies for human movement augmentation”, Hanyang University, 2022, 2023, 2024
- J. Ahn, “Understanding and enhancing human movement through sports engineering”
- Gangnam-gu, 2023
- SNU Advanced Leadership Program, 2023
- Gangnam-gu, 2022
- SNU Advanced Leadership Program, 2022
- J. Ahn, “Augmentation of human motor performance through simple, compact, light but smart garments and proper quantification”
- Northeastern University, Action Laboratory, 2021
- Biobehavioral Science Summit, 2021
- Seoul National University Bundang Hospital Data Center, 2021
- Keimyung University, 2021
- J. Ahn, “Technologies for injury prevention”, Konyang University, 2021
- J. Ahn, “Augmentation of human motor performance through the bilateral approach in sports engineering”, Yonsei University, School of Business, 2021
- J. Ahn, “Augmentation of human motor performance through the bilateral approach in sports engineering”, KAIST, Department of Mechanical Engineering, 2021
- J. Ahn, “Understanding and enhancing human motor performance”, Yonsei University, School of Business, 2019
- J. Ahn, “Human movement and science”, Sogang University, 2018
- J. Ahn, “Human movement and engineering”, Yonsei University, Department of Mechanical Engineering, 2018
- J. Ahn, “Motor rehabilitation and augmentation through technology”, Yonsei University, School of Business, 2018
- J. Ahn, “Understanding and quantification of human movement”
- National Rehabilitation Center, Republic of Korea, 2017
- Samsung, Mechatronics Laboratory, 2017
- J. Ahn, “Robot aided rehabilitation and performance augmentation”, Yonsei University, School of Business, 2017
- J. Ahn, “Towards better understanding of walking dynamics”, Gwangju Institute of Science and Technology, 2016
- J. Ahn, “Towards better quantification, better assistive technology and better understanding of human movements”, Seoul National University, 2016
- J. Ahn, “Towards better understanding of walking dynamics: through a simple but adequate model”, KAIST, 2016
- J. Ahn, “Novel approaches to Robotic Assistance: from classical dynamics to better human health”, POSTECH, 2016
- J. Ahn, “Assessing Stability of Rhythmic Motion under Noise”, Seoul National University, 2014
- J. Ahn, “Towards better robotic walking therapy through better understanding of human walking”
- University of Illinois at Chicago, 2014
- University of Victoria, 2014
- Southern Illinois University Carbondale, 2014
- J. Ahn, “A simple but adequate model of human walking”
- Boston Action Club, 2014
- J. Ahn, “From classical dynamics to better human health”
- Yonsei University, Department of Mechanical Engineering, 2013
- Seoul National University, Department of Mechanical & Aerospace Engineering , 2013
- J. Ahn, “A novel approach to robotic walking therapy: entrainment to ankle mechanical perturbation”
- San Diego State University, Department of Mechanical Engineering, Electrical Computer Engineering and NSF Engineering Research Center, 2012
- Southern Illinois University Edwardsville, Department of Mechanical and Industrial Engineering, 2012
- Southern Methodist University, Department of Mechanical Engineering, 2012
- Florida Atlantic University, Department of Ocean and Mechanical Engineering, 2012
- Massachusetts Institute Technology, Control Instrumentation and Robotics Seminar, 2011
- J. Ahn, “Feasibility of dynamic entrainment with ankle mechanical perturbation to treat locomotor deficits”, Rehabilitation Institute of Chicago, 2009
[Patents]
- Clothing insertion type vibration module, 2021 (Republic of Korea)
- Exercise assistant system using wearable stimulation member, 2021 (Republic of Korea)
- Vibrating module system and clothing having it, 2022 (Republic of Korea)
- Wearable robotic glove for grip force enhancement, 2022 (Republic of Korea)
- Method and apparatus for determining sensory threshold for shoe-type device, and method for controlling the same, 2019 (Republic of Korea), 2023 (USA)
- Smart insole and balance enhancement comprising the same, 2022 (EU), 2023 (USA), 2024 (Republic of Korea)
- Compression pants for out-toeing correction, 2024 (Republic of Korea)
[Major Research Grants]
- Development and clinical assessment of a patient-tailored intelligent system for gait rehabilitation in stroke patients via real-time multiple assistance with propulsion visual feedback and propulsion promotion
- Period: 2024 ~ 2026
- Offering agency: Ministry of Science, ICT, Republic of Korea
- Role: Principal Investigator
- Amount assigned to J. Ahn: 466,320,000 KRW
- Developing the barrier free XR technology for the disabled
- Period: 2024 ~ 2026
- Offering agency: Ministry of Culture, Sports and Tourism, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 178,442,000 KRW
- Developing the evaluation methods for analyzing the effects of soft wearable robots
- Period: 2023 ~ 2027
- Offering agency: Ministry of Health & Welfare, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 540,000,000 KRW (= 403,000 USD)
- Developing the wearable soft robots for human performance augmentation (ERC) 3rd phase
- Period: 2023 ~ 2026
- Offering agency: Ministry of Science, ICT, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 165,000,000 KRW (= 125,000 USD)
- Detection and prevention of fall using an advanced fall inducing system (Brain Pool program)
- Period: 2022~2023
- Offering agency: Ministry of Science, ICT, Republic of Korea
- Role: Principal Investigator
- Amount assigned to J. Ahn: 144,140,000 KRW (= 109,000 USD)
- Development of wearable robot product and service platform for healthcare in home and daily-life environment
- Period: 2022~2025
- Offering agency: Ministry of Trade, Industry and Energy, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 356,160,000 KRW (= 270,000 USD)
- 4D printing of mechanical metamaterial footwear soles for gait function augmentation and foot disorder treatment
- Period: 2021~2023
- Offering agency: Seoul National University
- Role: Participating Investigator
- Amount assigned to J. Ahn: 33,000,000 KRW (= 25,000 USD)
- The industrial technology innovation program: development of safe and comfortable human augmentation hybrid robot suit
- Period: 2021~2026
- Offering agency: Ministry of Trade, Industry and Energy, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 985,000,000 KRW (= 748,000 USD)
- Quantification of the running course level for recreational runners
- Period: 2021
- Offering agency: Samsung
- Role: Principal Investigator
- Amount assigned to J. Ahn: 13,000,000 KRW (= 9,900 USD)
- Usability test of GEMS-H with the elderly population
- Period: 2020~2021
- Offering agency: Samsung
- Role: Principal Investigator
- Amount assigned to J. Ahn: 35,000,000 KRW (= 26,600 USD)
- Brain Korea 21 four: training program for global leaders in sports science
- Period: 2020~2023
- Offering agency: Ministry of Education, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 239,000,000 KRW (= 181,000 USD)
- Development of a next-generation smart personal protective respirator for future preparedness post COVID-19
- Period: 2020~2021
- Offering agency: Seoul National University
- Role: Participating Investigator
- Amount assigned to J. Ahn: 28,500,000 KRW (= 21,600 USD)
- Development of a human-centered personal protective suit for disaster preparedness
- Period: 2020~2021
- Offering agency: Ministry of Trade, Industry and Energy, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 20,000,000 KRW (= 15,200 USD)
- Developing wearable soft robot technology for workers
- Period: 2020~2024
- Offering agency: Ministry of Trade, Industry and Energy, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 425,000,000 KRW (= 323,000 USD)
- Quantification of the effects of SNPE program on the motor performance of golfers
- Period: 2019~2020
- Offering agency: SNPE
- Role: Principal Investigator
- Amount assigned to J. Ahn: 23,000,000 KRW (= 17,500 USD)
- Hybrid smart wearable monitoring system for sports performance augmentation
- Period: 2019~2021
- Offering agency: Korea Sports Promotion Foundation
- Role: Participating Investigator
- Amount assigned to J. Ahn: 42,000,000 KRW (= 31,900 USD)
- Developing compression wear that augments human motor performance by tactile feedback
- Period: 2019~2020
- Offering agency: Seoul National University
- Role: Principal Investigator
- Amount assigned to J. Ahn: 35,000,000 KRW (= 26,600 USD)
- Developing core technology of smart garment that optimizes human motor performance
- Period: 2018~2019
- Offering agency: Ministry of Science, ICT, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 11,800,000 KRW (= 8,960 USD)
- Motor performance augmentation by active insoles
- Period: 2018
- Offering agency: Samsung
- Role: Principal Investigator
- Amount assigned to J. Ahn: 100,000,000 KRW (= 75,900 USD)
- Developing ergonomic military system considering combat load
- Period: 2018
- Offering agency: Ministry of National Defense, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 21,250,000 KRW (= 16,000 USD)
- Motor performance augmentation through tactile sensation
- Period: 2018 ~ 2021
- Offering agency: Ministry of Science, ICT, Republic of Korea
- Role: Principal Investigator
- Amount assigned to J. Ahn: 90,000,000 KRW (= 68,300 USD)
- Developing the wearable soft robots for human performance augmentation (ERC) 1st and 2nd phases
- Period: 2016 ~ 2022
- Offering agency: Ministry of Science, ICT, Republic of Korea
- Role: Participating Investigator
- Amount assigned to J. Ahn: 201,260,000 KRW (= 153,000 USD)
- Developing the accurate performance metric for human movement
- Period: 2016 ~ 2017
- Offering agency: Seoul National University
- Role: Principal Investigator
- Amount assigned to J. Ahn: 150,000,000 KRW (= 114,000 USD)
- Developing a performance metric for suspension seats for marine vehicles
- Period: 2015 ~ 2017
- Offering agency: Mitacs
- Role: Principal Investigator
- Amount assigned to J. Ahn: 150,000 CAD
- Towards better understanding of human walking and effective assistive technology
- Period: 2014 ~ 2019
- Offering agency: National Sciences and Engineering Research Council of Canada (NSERC)
- Role: Principal Investigator
- Amount assigned to J. Ahn: 110,000 CAD
