Display options
Share it on

Front Hum Neurosci. 2016 Mar 10;10:68. doi: 10.3389/fnhum.2016.00068. eCollection 2016.

Transcranial Direct Current Stimulation Combined with Aerobic Exercise to Optimize Analgesic Responses in Fibromyalgia: A Randomized Placebo-Controlled Clinical Trial.

Frontiers in human neuroscience

Mariana E Mendonca, Marcel Simis, Luanda C Grecco, Linamara R Battistella, Abrahão F Baptista, Felipe Fregni

Affiliations

  1. Department of Neuroscience and Behavior, Institute of Psychology, University of São Paulo São Paulo, Brazil.
  2. Physical and Rehabilitation Medicine Institute of the University of São Paulo, Medical School General Hospital São Paulo, Brazil.
  3. Pediatric Neurosurgical Center - Rehabilitation (CENEPE)São Paulo, Brazil; Laboratory of Neuromodulation, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital and Massachusetts General HospitalBoston, MA, USA.
  4. Laboratory of Functional Electrostimulation, Department of Biomorphology, Federal University of Bahia Bahia, Brazil.
  5. Department of Neuroscience and Behavior, Institute of Psychology, University of São PauloSão Paulo, Brazil; Laboratory of Neuromodulation, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital and Massachusetts General HospitalBoston, MA, USA.

PMID: 27014012 PMCID: PMC4785149 DOI: 10.3389/fnhum.2016.00068

Abstract

UNLABELLED: Fibromyalgia is a chronic pain syndrome that is associated with maladaptive plasticity in neural central circuits. One of the neural circuits that are involved in pain in fibromyalgia is the primary motor cortex. We tested a combination intervention that aimed to modulate the motor system: transcranial direct current stimulation (tDCS) of the primary motor cortex (M1) and aerobic exercise (AE). In this phase II, sham-controlled randomized clinical trial, 45 subjects were assigned to 1 of 3 groups: tDCS + AE, AE only, and tDCS only. The following outcomes were assessed: intensity of pain, level of anxiety, quality of life, mood, pressure pain threshold, and cortical plasticity, as indexed by transcranial magnetic stimulation. There was a significant effect for the group-time interaction for intensity of pain, demonstrating that tDCS/AE was superior to AE [F (13, 364) = 2.25, p = 0.007] and tDCS [F (13, 364) = 2.33, p = 0.0056] alone. Post-hoc adjusted analysis showed a difference between tDCS/AE and tDCS group after the first week of stimulation and after 1 month intervention period (p = 0.02 and p = 0.03, respectively). Further, after treatment there was a significant difference between groups in anxiety and mood levels. The combination treatment effected the greatest response. The three groups had no differences regarding responses in motor cortex plasticity, as assessed by TMS. The combination of tDCS with aerobic exercise is superior compared with each individual intervention (cohen's d effect sizes > 0.55). The combination intervention had a significant effect on pain, anxiety and mood. Based on the similar effects on cortical plasticity outcomes, the combination intervention might have affected other neural circuits, such as those that control the affective-emotional aspects of pain.

TRIAL REGISTRATION: (www.ClinicalTrials.gov), identifier NTC02358902.

Keywords: aerobic exercise; combined therapy; fibromyalgia; motor cortex; transcranial direct current stimulation (tDCS)

References

  1. Sports Med. 2000 Feb;29(2):85-98 - PubMed
  2. Clin Neurophysiol. 2000 Jun;111(6):994-1001 - PubMed
  3. J Am Coll Cardiol. 2001 Jan;37(1):153-6 - PubMed
  4. Lancet Neurol. 2003 Mar;2(3):145-56 - PubMed
  5. J Physiol. 2003 Nov 15;553(Pt 1):293-301 - PubMed
  6. Proc Natl Acad Sci U S A. 2004 Mar 2;101(9):3316-21 - PubMed
  7. Sports Med. 1992 Jan;13(1):25-36 - PubMed
  8. Neurology. 2006 Nov 14;67(9):1568-74 - PubMed
  9. Arthritis Rheum. 2006 Dec;54(12):3988-98 - PubMed
  10. Pain Pract. 2007 Dec;7(4):297-306 - PubMed
  11. Br J Sports Med. 2009 Jan;43(1):22-4 - PubMed
  12. Alzheimers Dement. 2007 Apr;3(2 Suppl):S45-51 - PubMed
  13. Clin J Pain. 2009 Oct;25(8):691-5 - PubMed
  14. J Pain. 2010 May;11(5):436-42 - PubMed
  15. Pain. 2010 Jun;149(3):495-500 - PubMed
  16. Neuron. 2010 Apr 29;66(2):198-204 - PubMed
  17. J Pain Symptom Manage. 2010 May;39(5):890-903 - PubMed
  18. J Head Trauma Rehabil. 2010 May-Jun;25(3):184-92 - PubMed
  19. Brain Stimul. 2008 Jul;1(3):206-23 - PubMed
  20. Brain. 2010 Sep;133(9):2565-77 - PubMed
  21. J Pain Manag. 2009;2(3):353-361 - PubMed
  22. J Rheumatol. 2011 Jun;38(6):1113-22 - PubMed
  23. J Pain. 2011 May;12(5):610-7 - PubMed
  24. Open Rheumatol J. 2011;5:45-50 - PubMed
  25. Headache. 2012 Sep;52(8):1283-95 - PubMed
  26. Pain Pract. 2013 Feb;13(2):131-45 - PubMed
  27. Brain Stimul. 2013 May;6(3):424-32 - PubMed
  28. Pain Physician. 2012 Jul;15(3 Suppl):ES205-13 - PubMed
  29. J Rehabil Med. 2013 Jan;45(1):6-13 - PubMed
  30. NeuroRehabilitation. 2013;33(1):49-56 - PubMed
  31. Clin Neurophysiol. 2014 Feb;125(2):298-305 - PubMed
  32. Cochrane Database Syst Rev. 2013 Sep 10;(9):CD009796 - PubMed
  33. Neurorehabil Neural Repair. 2014 Mar-Apr;28(3):250-9 - PubMed
  34. Cochrane Database Syst Rev. 2014 Apr 11;(4):CD008208 - PubMed
  35. J Pain. 2014 Aug;15(8):845-55 - PubMed
  36. Med Hypotheses. 2014 Sep;83(3):332-6 - PubMed
  37. Exp Brain Res. 2014 Oct;232(10):3345-51 - PubMed
  38. J Phys Ther Sci. 2014 Oct;26(10):1561-5 - PubMed
  39. J Back Musculoskelet Rehabil. 2015;28(4):609-19 - PubMed
  40. Sports Med. 1995 Sep;20(3):160-88 - PubMed
  41. Sports Med. 1997 Jul;24(1):8-16 - PubMed

Publication Types