RecruitingDevice studyImprove Dynamic Lateral Balance of Humans With SCIThis study is to test whether pelvis perturbation training paired with transcutaneous spinal direct current stimulation (tsDCS) will be effective in improving dynamic balance and locomotor function in humans with SCI. One group will receive pelvis perturbation training paired with tsDCS, one group will receive pelvis perturbation training paired with sham, and one group will receive treadmill training only.