Musculoskeletal BioDynamics Lab

근골격 운동역학 연구실

KAIST, Daejeon, South Korea

Human joints are mechanically redundant systems consisting of multiple ligaments and muscles. We have developed musculoskeletal dynamics models of the knee and foot joints and have run simulations to estimate muscle forces, ligament tensions and articular contact forces during daily activities, which helps understand the mechanism of joint injuries.

Walking is a result of complex process that involves neuronal control of muscles, musculoskeletal dynamics and interaction with environments. We investigate the neuronal controller of human walking using the deep reinforcement learning for the applications in orthopaedics, rehabilitation, and sports. Human gait study is closely related with bipedal robots and exoskeleton robots assisting walking.

Unusual movements of the human joint can initiate a degenerative process by changing the mechanical stresses in soft tissues and bone surfaces. We have developed a dual X-ray fluoroscopic imaging system to measure the patient's accurate three-dimensional joint motion. We use this system to understand abnormal joint movements and changes due to surgical intervention.

본 연구실에서는 인체 근골격 운동의 원리와 정형외과적 근골격 문제의 원인을 이해하기 위한 연구를 진행합니다. 다물체 동역학에 기반한 인체 근골격 동역학 모델을 개발하고, 역동역학 해석을 이용하여 근육힘 및 관절 접촉힘을 예측하고 관절 부상 원리를 연구합니다. 최신 AI 강화학습 기술과 근골격 순동역학 시뮬레이션 기술을 이용하여 인체가 다양한 환경에서 걸을 수 있게 근육을 조정하는 인체 뇌신경시스템의 원리를 연구합니다. 관절을 이루는 골격들이 상호 운동하는 형상을 정밀하게 측정하는 엑스선 영상 기술을 개발하고, 이를 이용한 최적의 인공관절 및 관절 수술 기구물의 형상을 연구합니다.


  • 2021.06.15 Prof. Koo became the council member of Asian-Pacific Association for Biomechanics (APAB), which encourages collaborations in this region for biomechanics research.

  • 2021.04.23 Invited seminar by Prof. John Rasmussen on A Top-down Approach to Exoskeleton Design using Musculoskeletal Simulation

  • 2021.04.02 Invited seminar by Prof. Jae Kun Shim on Role of Sensory Feedback in Human Movements

  • 2020.08.06 Mingi Jung and Junyo Boo joined the lab as master students

  • 2021.01.25 Invited seminar by Prof. Jooeun Ahn on Augmentation of Human Motor Performance through the Bilateral Approach in Sports Engineering

  • 2020.08.06 Gunwo Park and Ailian Chi joined the lab as master students

  • 2020.06.05 Online Lecture to support Biomechanics Research in Dominican Republic

  • 2020.06.01 New publication "Increase of stiffness in plantar fat tissue in diabetic patients " in Journal of Biomechanics

  • 2020.06.01 New publication "Anatomical ACL reconstruction can restore the natural knee kinematics than isometric ACL reconstruction during the stance phase of walking" in International Journal of Precision Engineering and Manufacturing

  • 2020.04.01 Youngjun Koo finished his PhD and re-joined the lab as a postdoctoral fellow

  • 2020.03.01 Seungwoo Yoon (PhD student), Mingi Jung (master student), and Junyo Bo (master student) joind the lab

MSKBioDyn Lab introduction taken September, 2022

See KAIST ME Lab introduction series