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Muscle Atrophy pp 585-591 | Cite as

To Reverse Atrophy of Human Muscles in Complete SCI Lower Motor Neuron Denervation by Home-Based Functional Electrical Stimulation

  • Helmut Kern
  • Paolo Gargiulo
  • Amber Pond
  • Giovanna Albertin
  • Andrea Marcante
  • Ugo CarraroEmail author
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 1088)

Abstract

After spinal cord injury (SCI), patients spend daily several hours in wheelchairs, sitting on their hamstring muscles. SCI causes muscle atrophy and wasting, which is especially severe after complete and permanent damage to lower motor neurons. A European Union (EU)-supported work demonstrates that electrical fields produced by large electrodes and purpose-developed electrical stimulators recover both quadriceps and hamstring muscles, producing a cushioning effect capable of benefitting SCI patients, even in the worst case of complete and long-term lower motor neuron denervation of leg muscles. We reported that 20 out of 25 patients completed a 2-year h-bFES program, which resulted in (1) a 35% increase in cross-sectional area of the quadriceps muscles (P < 0.001), (2) a 75% increase in mean diameter of quadriceps muscle fibers (P < 0.001), and (3) improvement of the ultrastructural organization of contractile machinery and of the Ca2+-handling system. Though not expected, after 2 years during which the 20 subjects performed 5 days per week h-bFES of the atrophic quadriceps muscles, the CT cross-sectional area of the hamstring muscles also augmented, increasing from 26.9+/−8.4 (cm2) to 30.7+/−9.8 (cm2), representing a significant (p ≤ 0.05) 15% increase. Here we show by quantitative muscle color computed tomography (QMC-CT) that h-bFES-induced tissue improvements are present also in the hamstring muscles: a once supposed drawback (lack of specificity of muscle activation by large surface electrodes) is responsible for a major positive clinical effect. Interestingly, 2 years of home-based FES by large surface electrodes reversed also the denervation-induced skin atrophy, increasing epidermis thickness. Finally, we would like to attract attention of the readers to quantitative muscle color computed tomography (QMC-CT), a sensitive quantitative imaging analysis of anatomically defined skeletal muscles introduced by our group to monitor atrophy/degeneration of skeletal muscle tissue. Worldwide acceptance of QMC-CT will provide physicians an improved tool to quantitate skeletal muscle atrophy/degeneration before and during rehabilitation strategies so that therapy for mobility-impaired persons can be better prescribed, evaluated, and altered where needed.

Keywords

Muscle atrophy Home-based functional electrical stimulation Quantitative muscle color computed tomography 

Notes

Acknowledgments

This chapter was substantially modified from the paper published by our group in H Kern, U Carraro, S Loefler, Ch Hofer, S Zampieri, W Mayr, S Boncompagni, F Protasi, R Rizzuto, M Sandri, A Musarò, S Masiero, A Pond, F Piccione, and A Marcante. Functional Electrical Stimulation of Skeletal Muscles in Aging and Premature Aging. In: Rehabilitation Medicine for Elderly Patients, Masiero S, Carraro U, Eds. 2017; Chapter 11. pp. 93-104. DOI 10.1007/978-3-319-57406-6. The related contents are reused with permission.

The support of the European Regional Development Fund Cross Border Cooperation Program SLOVAKIA-AUSTRIA (Interreg Iva) project “Mobilität im Alter” MOBIL N_00033, Austrian Federal Ministry of Science and Research, and Ludwig Boltzmann Society (Vienna) is gratefully acknowledged, supported also by institutional funds of the Interdepartmental Research Center of Myology of the University of Padova; the IRCCS Fondazione Ospedale San Camillo, Venice; and the A&CM-C Foundation for Translational Myology, Padova, Italy.

Competing Financial Interests

The authors declare no competing financial interests.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Helmut Kern
    • 1
  • Paolo Gargiulo
    • 2
  • Amber Pond
    • 3
  • Giovanna Albertin
    • 4
  • Andrea Marcante
    • 5
  • Ugo Carraro
    • 5
    • 6
    • 7
    Email author
  1. 1.Physiko- und RheumatherapieSt. PoeltenAustria
  2. 2.Institute for Biomedical and Neural Engineering/Biomedical Technology CentreReykjavik University and LandspitaliReykjavikIceland
  3. 3.Department of Anatomy, Southern Illinois University School of MedicineSouthern Illinois UniversityCarbondaleUSA
  4. 4.Section of Anatomy, Department of NeuroscienceUniversity of PadovaPadovaItaly
  5. 5.IRCCS Fondazione Ospedale San CamilloVenezia-LidoItaly
  6. 6.Interdepartmental Research Center of Myology (CIR-Myo), Department of Biomedical ScienceUniversity of PadovaPadovaItaly
  7. 7.A&C M-C Foundation for Translational MyologyPadovaItaly

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