ANGLE 1 FPGA 1 IMPLEMENTATION 1 LOGIC CONTROLLER 1 MOVEMENT 1 NEUROMUSCULAR ELECTRICAL-STIMULATION 1 TRACKING 1 Verilog codes 1 closed-loop FES 1 functional electrical stimulator (FES) 1 fuzzy logic controller (FLC) 1 hardware description language (HDL) 1 knee extension 1 neuromuscular 1 rehabilitation 1 spinal cord injury (SCI) 1