TY - GEN
T1 - Preliminary Development of a Closed-Loop FES System Application with a Co-activation Map for Restoring Knee Joint Movements
AU - Safira, Adelia
AU - Arifin, Achmad
AU - Arrofiqi, Fauzan
N1 - Publisher Copyright:
©2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Stroke is a leading cause of death and disability worldwide, with around 1.7 million new cases reported in Indonesia in 2020. Hemiplegia often leads to gait impairment due to limited knee movement. Previous Functional Electrical Stimulation (FES) systems for rehabilitation could not respond to real-time changes in subject conditions, and stimulation adjustment between antagonistic muscles was slow, causing unstable motion. This study proposes a closed-loop FES system integrating dual IMU sensors and a Fuzzy Logic Controller (FLC) with a Fuzzy Coactivation Map to coordinate quadriceps and hamstring activity based on real-time knee trajectory feedback. The coactivation mapping functioned effectively in synchronizing muscle activation. However, the knee movement produced by the system was not yet smooth and accurate, indicating that the closed-loop control still requires further improvement. Future work will focus on enhancing controller responsiveness and stability to achieve better motion performance in hemiplegic patients.
AB - Stroke is a leading cause of death and disability worldwide, with around 1.7 million new cases reported in Indonesia in 2020. Hemiplegia often leads to gait impairment due to limited knee movement. Previous Functional Electrical Stimulation (FES) systems for rehabilitation could not respond to real-time changes in subject conditions, and stimulation adjustment between antagonistic muscles was slow, causing unstable motion. This study proposes a closed-loop FES system integrating dual IMU sensors and a Fuzzy Logic Controller (FLC) with a Fuzzy Coactivation Map to coordinate quadriceps and hamstring activity based on real-time knee trajectory feedback. The coactivation mapping functioned effectively in synchronizing muscle activation. However, the knee movement produced by the system was not yet smooth and accurate, indicating that the closed-loop control still requires further improvement. Future work will focus on enhancing controller responsiveness and stability to achieve better motion performance in hemiplegic patients.
KW - Functional Electrical Stimulation (FES)
KW - Fuzzy Logic Controller (FLC)
KW - Hemiplegic
KW - Knee joint rehabilitation
KW - Muscle coactivation
UR - https://www.scopus.com/pages/publications/105033156708
U2 - 10.1109/CENIM67940.2025.11325757
DO - 10.1109/CENIM67940.2025.11325757
M3 - Conference contribution
AN - SCOPUS:105033156708
T3 - Proceeding of the International Conference on Computer Engineering, Network and Intelligent Multimedia 2025, CENIM 2025
SP - 496
EP - 501
BT - Proceeding of the International Conference on Computer Engineering, Network and Intelligent Multimedia 2025, CENIM 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th International Conference on Computer Engineering, Network and Intelligent Multimedia, CENIM 2025
Y2 - 25 November 2025 through 26 November 2025
ER -