FES Bicycles and IPG

Whatever the level of SCI, it is always difficult to find ways to exercise after a spinal cord injury.  A popular idea for promoting lower-body activity is the use of an electrical-stimulation bicycle (FES bike, specifically).  Speaking from personal experience, this does not work for everybody.  If the injury affects or impairs response to e-stim, then FES is not a feasible or readily workable option.  This article follows up on a 2016 overground race that involved "implantable pulse generators" (IPG) to help participants power FES bikes.