TY - JOUR AU - Lukyanenko, Platon AU - Dewald, Hendrik Adriaan AU - Lambrecht, Joris AU - Kirsch, Robert F. AU - Tyler, Dustin J. AU - Williams, Matthew R. PY - 2021 DA - 2021/03/18 TI - Stable, simultaneous and proportional 4-DoF prosthetic hand control via synergy-inspired linear interpolation: a case series JO - Journal of NeuroEngineering and Rehabilitation SP - 50 VL - 18 IS - 1 AB - Current commercial prosthetic hand controllers limit patients’ ability to fully engage high Degree-of-Freedom (DoF) prosthetic hands. Available feedforward controllers rely on large training data sets for controller setup and a need for recalibration upon prosthesis donning. Recently, an intuitive, proportional, simultaneous, regression-based 3-DoF controller remained stable for several months without retraining by combining chronically implanted electromyography (ciEMG) electrodes with a K-Nearest-Neighbor (KNN) mapping technique. The training dataset requirements for simultaneous KNN controllers increase exponentially with DoF, limiting the realistic development of KNN controllers in more than three DoF. We hypothesize that a controller combining linear interpolation, the muscle synergy framework, and a sufficient number of ciEMG channels (at least two per DoF), can allow stable, high-DoF control. SN - 1743-0003 UR - https://doi.org/10.1186/s12984-021-00833-3 DO - 10.1186/s12984-021-00833-3 ID - Lukyanenko2021 ER -