, Volume 21, Issue 1, pp 56–60

Effects of Neuromuscular Electrical Stimulation on Submental Muscle Activity

  • Debra M. Suiter
  • Steven B. Leder
  • Jacki L. Ruark


Neuromuscular electrical stimulation (NMES) therapy has been proposed as a treatment option for pharyngeal dysphagia. However, little is known about the effects, if any, that NMES has on specific biomechanical aspects of the pharyngeal swallow. The purpose of this study was to determine if two weeks of NMES applied to the submental muscles increased myoelectric activity. Ten age- and gender-matched subjects participated, and eight completed the protocol. Treatment was delivered using an AB or BA design. No treatment was given during the A condition. Subjects received ten 1-h NMES treatments during the B condition. Results indicated that seven of eight subjects exhibited no significant gains in myoelectric activity of the submental muscles following NMES. Therefore, the benefit of NMES to the submental muscles with the goal of improving the pharyngeal swallow is not supported. Additional research investigating duration of treatment as well as frequency and amplitude modulation of NMES is needed to determine if, how, and why NMES applied to the submental muscles affects the biomechanical aspects of both the normal and disordered pharyngeal swallow.


Deglutition Deglutition Disorders Electrical Stimulation Pharyngeal dysphagia 


  1. 1.
    Milner-Brown HS, Miller RG: Muscle strengthening through electrical stimulation combined with low-resistance weights in patients with neuromuscular disorders. Arch Phys Med Rehabil 69:20–24, 1988PubMedGoogle Scholar
  2. 2.
    Lake DA: Neuromuscular electrical stimulation. An overview, and its application in the treatment of sports injuries. Sports Med 13:320–336, 1992Google Scholar
  3. 3.
    Freed ML, Freed L, Chatburn RL, Christian M: Electrical stimulation for swallowing disorders caused by stroke. Respir Care 46:466–474, 2001PubMedGoogle Scholar
  4. 4.
    Leelamanit V, Limsakul C, Geater A: Synchronized electrical stimulation in treating pharyngeal dysphagia. Laryngoscope 112:2204–2210, 2002PubMedCrossRefGoogle Scholar
  5. 5.
    Fraser C, Rothwell J, Power M, Hobson A, Thompson D, Hamdy S: Differential changes in human pharyngoesophageal motor excitability induced by swallowing, pharyngeal stimulation, and anesthesia. Am J Physiol Gastrointest Liver Physiol 285:G137–G144, 2003PubMedGoogle Scholar
  6. 6.
    Lazzara G, Lazarus C, Logemann JA: Impact of thermal stimulation on the triggering of the swallowing reflex. Dysphagia 1:73–77, 1986CrossRefGoogle Scholar
  7. 7.
    Power M, Fraser C, Hobson A, Rothwell JC, Mistry S, Nicholson DA, et al.: Changes in pharyngeal corticobulbar excitability and swallowing behavior after oral stimulation. Am J Physiol Gastrointest Liver Physiol 286:G45–G50, 2004PubMedCrossRefGoogle Scholar
  8. 8.
    Jones NL, McCartney M, McComas AJ: Human Muscle Power. Champagne, IL: Human Kinetics, 1986Google Scholar
  9. 9.
    Clark HM: Neuromuscular treatments for speech and swallowing: A tutorial. Am J Speech Lang Pathol 12:400–415, 2003PubMedCrossRefGoogle Scholar
  10. 10.
    Currier DP, Mann R: Muscular strength development by electrical stimulation in healthy individuals. Phys Ther 63:915–921, 1983PubMedGoogle Scholar
  11. 11.
    Parker MG, Bennett MJ, Hieb MA, Hollar AC, Roe AA: Strength response in human femoris muscle during 2 neuromuscular electrical stimulation programs. J Orthop Sports Phys Ther 33:719–726, 2003PubMedGoogle Scholar
  12. 12.
    Alon G: Use of neuromuscular electrical stimulation in neurorehabilitation: A challenge to all [editorial]. J Rehabil Res Dev 40:ix–xii, 2003PubMedCrossRefGoogle Scholar
  13. 13.
    Caggiano E, Emrey T, Shirley S, Craik RL: Effects of electrical stimulation or voluntary contraction for strengthening the quadriceps femoris muscles in an aged male population. J Orthop Sports Phys Ther 20:22–28, 1994PubMedGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Debra M. Suiter
    • 1
  • Steven B. Leder
    • 2
  • Jacki L. Ruark
    • 3
  1. 1.School of Audiology and Speech-Language PathologyThe University of MemphisMemphisUSA
  2. 2.Department of Surgery, Section of OtolaryngologyYale University School of MedicineNew HavenUSA
  3. 3.Speech-Language PathologyUniversity of Central ArkansasConwayUSA

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