PMID- 35477745 OWN - NLM STAT- MEDLINE DCOM- 20221107 LR - 20221205 IS - 1476-5624 (Electronic) IS - 1362-4393 (Print) IS - 1362-4393 (Linking) VI - 60 IP - 11 DP - 2022 Nov TI - Feasibility of transcutaneous spinal direct current stimulation combined with locomotor training after spinal cord injury. PG - 971-977 LID - 10.1038/s41393-022-00801-1 [doi] AB - STUDY DESIGN: Feasibility study, consisting of random-order, cross-over study of a single intervention session, followed by a parallel-arm study of 16 sessions. OBJECTIVES: To investigate the feasibility of a novel combinatorial approach with simultaneous delivery of transcutaneous spinal direct current stimulation (tsDCS) and locomotor training (tsDCS + LT) after spinal cord injury, compared to sham stimulation and locomotor training (sham + LT), and examine preliminary effects on walking function. SETTING: Clinical research center in the southeastern United States. METHODS: Eight individuals with chronic incomplete spinal cord injury (ISCI) completed the two-part protocol. Feasibility was assessed based on safety (adverse responses), tolerability (pain, spasticity, skin integrity), and protocol achievement (session duration, intensity). Walking function was assessed with the 10 m and 6 min walk tests. RESULTS: There were no major adverse responses. Minimal reports of skin irritation and musculoskeletal pain were consistent between groups. Average training peak heart rate as percent of maximum (mean(SD); tsDCS + LT: 66 (4)%, sham + LT: 69 (10)%) and Borg ratings of perceived exertion (tsDCS + LT: 17.5 (1.2), sham + LT: 14.4 (1.8)) indicate both groups trained at high intensities. Walking speed gains exceeded the minimal clinically important difference (MCID) in three of four who received tsDCS + LT (0.18 (0.29) m/s) and one of four in sham + LT (-0.05 (0.23) m/s). Gains in walking endurance exceeded the MCID in one of four in each group (tsDCS + LT: 36.4 (69.0) m, sham + LT: 4.9 (56.9) m). CONCLUSIONS: Combinatorial tsDCS and locomotor training is safe and feasible for individuals with chronic ISCI, even those with considerable walking impairment. Study outcomes support the need to investigate the efficacy of this approach. CI - (c) 2022. The Author(s), under exclusive licence to International Spinal Cord Society. FAU - Hawkins, Kelly A AU - Hawkins KA AUID- ORCID: 0000-0002-9281-230X AD - Department of Physical Therapy, University of Florida, Gainesville, FL, USA. FAU - DeMark, Louis A AU - DeMark LA AD - Brooks Rehabilitation, Jacksonville, FL, USA. FAU - Vistamehr, Arian AU - Vistamehr A AD - Brooks Rehabilitation, Jacksonville, FL, USA. FAU - Snyder, Hannah J AU - Snyder HJ AD - Brooks Rehabilitation, Jacksonville, FL, USA. FAU - Conroy, Christy AU - Conroy C AD - Brooks Rehabilitation, Jacksonville, FL, USA. FAU - Wauneka, Clayton AU - Wauneka C AD - Brooks Rehabilitation, Jacksonville, FL, USA. FAU - Tonuzi, Geneva AU - Tonuzi G AD - Brooks Rehabilitation, Jacksonville, FL, USA. FAU - Fuller, David D AU - Fuller DD AD - Department of Physical Therapy, University of Florida, Gainesville, FL, USA. FAU - Clark, David J AU - Clark DJ AD - Brain Rehabilitation Research Center of Excellence, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA. AD - Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA. FAU - Fox, Emily J AU - Fox EJ AUID- ORCID: 0000-0003-0142-3497 AD - Department of Physical Therapy, University of Florida, Gainesville, FL, USA. ejfox@phhp.ufl.edu. AD - Brooks Rehabilitation, Jacksonville, FL, USA. ejfox@phhp.ufl.edu. LA - eng GR - P2C HD086851/HD/NICHD NIH HHS/United States GR - HD055929/HD/NICHD NIH HHS/United States GR - T32 HD043730/HD/NICHD NIH HHS/United States GR - K12 HD055929/HD/NICHD NIH HHS/United States GR - HD-15-010/HD/NICHD NIH HHS/United States GR - T32HD043730/HD/NICHD NIH HHS/United States PT - Journal Article DEP - 20220427 PL - England TA - Spinal Cord JT - Spinal cord JID - 9609749 SB - IM MH - Humans MH - Cross-Over Studies MH - Feasibility Studies MH - Physical Therapy Modalities MH - Spinal Cord MH - *Spinal Cord Injuries/therapy MH - *Spinal Cord Stimulation/methods PMC - PMC9606142 MID - NIHMS1795119 COIS- Competing interests: The authors declare no competing interests. EDAT- 2022/04/29 06:00 MHDA- 2022/11/08 06:00 PMCR- 2022/11/07 CRDT- 2022/04/28 05:27 PHST- 2021/11/16 00:00 [received] PHST- 2022/04/01 00:00 [accepted] PHST- 2022/03/30 00:00 [revised] PHST- 2022/04/29 06:00 [pubmed] PHST- 2022/11/08 06:00 [medline] PHST- 2022/04/28 05:27 [entrez] PHST- 2022/11/07 00:00 [pmc-release] AID - 10.1038/s41393-022-00801-1 [pii] AID - 10.1038/s41393-022-00801-1 [doi] PST - ppublish SO - Spinal Cord. 2022 Nov;60(11):971-977. doi: 10.1038/s41393-022-00801-1. Epub 2022 Apr 27.