1066-033X/18©2018IEEE DECEMBER 2018 « IEEE CONTROL SYSTEMS MAGAZINE 35 M obility disorders caused by spinal cord in- jury (SCI), stroke, or progressive neurological diseases such as multiple sclerosis and amyo- trophic lateral sclerosis, lead to a deterioration in quality of life. Resulting sequelae, such as pressure ulcers, depression, and urinary infections, re- quire constant medical care throughout a patient’s lifetime. Evidence has shown that, following an injury or a disease, individuals who use rehabilitative interventions to restore walking and standing functions experience fewer second- ary medical complications than do wheelchair users [1]. Two such rehabilitative interventions include functional electrical stimulation (FES) and powered exoskeletons. These technologies have the potential to mitigate second- ary health complications, lower medical expenses, and achieve independent ambulation in individuals following an SCI (see “Summary”). NAJI A. ALIBEJI, VAHIDREZA MOLAZADEH, FRANK MOORE-CLINGENPEEL, and NITIN SHARMA A Muscle Synergy- Inspired Control Design to Coordinate Functional Electrical Stimulation and a Powered Exoskeleton ARTIFICIAL GENERATION OF SYNERGIES TO REDUCE INPUT DIMENSIONALITY Digital Object Identifier 10.1109/MCS.2018.2866603 Date of publication: 13 November 2018