 Optimal configurations will also be tested for bladder and CV function. A specific stimulation parameter may be used to assess the influence of epidural stimulation on bladder function andor CV function. In the case of 9 Bladder function, following its assessment with stimulation the bladder will be filled with saline solution a second time after a 5 minute break. The optimal stimulation configuration for bladder will be used and the pressure will be recorded. The individual will be asked to attempt to empty hisher bladder when the stimulation is ongoing. Pressure will also be recorded when the bladder is relived. This test will take approximately 60 minutes. 