Welcome to the EMST150 Official Website!About Us Sobre Nosotros

The EMST 150 is an innovative handheld device that has been scientifically tested for its ability to improve muscle strength. A one of a kind device, the EMST 150 was designed by a team of researchers who understood the impact that muscle weakness can have on a person's overall health.  The EMST 150 was first tested on high school band students. The goal was to see if youth playing instruments that required strong exhaled air pressures could increase their expiratory power by training with the EMST 150. All the band students, boys and girls alike, that received the training had an increase in their ability to produce exhaled air pressure. They were power trained to have stronger expiratory muscles.

From this simple beginning, the EMST 150 research team has applied this same training to a wide range of individuals and found the device increased exhaled strength in all individuals that received the training. The EMST 150 team recognized that increasing exhaled strength can improve basic breathing related functions such as cough, swallow and speech. The team next worked with a group of competitive swimmers who experienced significant improvements in their stamina and performance, shaving valuable seconds off their time because EMST training decreased exhaled breathlessness. Likewise, the EMST150 has had similar positive outcomes for vocal performers.

The most exciting results came from working with the elderly and individuals suffering from neurological disorders. In trial after trial, the EMST 150 produced significant improvements in healthy individuals and person's with spinal cord injury, Parkinsons, multiple sclerosis and other types of neuromuscular disease. They found that increased expiratory strength improved cough strength in healthy elderly individuals allowing them to remain healthy and independent. In addition, patients with spinal cord injuries or degenerative diseases that cause weak respiratory muscles like multiple sclerosis or Parkinson's were getting positive results. The EMST 150 team recognized that therapists could use the device with these types of patients to strengthen weakened muscles improving breathing, cough, swallowing and speech. And, because the EMST 150 is the only device of this kind that is calibrated, therapists are able to measure and document progress during therapy programs.

The feedback from therapists and patients alike has been overwhelmingly positive (Read our Research page to learn more about the studies conducted) . Therapists and EMST 150 users all over the world continually share positive feedback with the EMST 150 team. If you have some news to share, join our blog or send us an email - we would love to hear it.

See the studies published by the EMST 150 Research Team:

  1. Sapienza CM, Davenport PW, Martin AD. Expiratory muscle training increases pressure support in high school band students. J Voice. 2002 16(4):495-501.
  2. Kim J, Sapienza CM. Implications of expiratory muscle strength training for rehabilitation of the elderly: Tutorial. J Rehabil Res Dev. 2005 42(2):211-24.
  3. Baker S, Davenport P, Sapienza C. Examination of strength training and detraining effects in expiratory muscles. J Speech Lang Hear Res. 2005 48(6):1325-33.
  4. Saleem AF, Sapienza CM, Okun MS. Respiratory muscle strength training: treatment and response duration in a patient with early idiopathic Parkinson's disease. NeuroRehabilitation. 2005 20(4):323-33.
  5. Wingate JM, Brown WS, Shrivastav R, Davenport P, Sapienza CM. Treatment outcomes for professional voice users. J Voice. 2007 21(4):433-49.
  6. Silverman EP, Sapienza CM, Saleem A, Carmichael C, Davenport PW, Hoffman-Ruddy B, Okun MS. Tutorial on maximum inspiratory and expiratory mouth pressures in individuals with idiopathic Parkinson disease (IPD) and the preliminary results of an expiratory muscle strength training program. NeuroRehabilitation. 2006 21(1):71-9.
  7. Sapienza CM, Wheeler K. Respiratory muscle strength training: functional outcomes versus plasticity. Semin Speech Lang. 2006 27(4):236-44.
  8. Wheeler KM, Chiara T, Sapienza CM. Surface electromyographic activity of the submental muscles during swallow and expiratory pressure threshold training tasks. Dysphagia. 2007 22(2):108-16.
  9. Chiara T, Martin D, Sapienza C. Expiratory muscle strength training: speech production outcomes in patients with multiple sclerosis. Neurorehabil Neural Repair. 2007 21(3):239-49.
  10. Burkhead LM, Sapienza CM, Rosenbek JC. Strength-training exercise in dysphagia rehabilitation: principles, procedures, and directions for future research. Dysphagia. 2007 22(3):251-65.
  11. Kim J, Davenport P, Sapienza C. Effect of expiratory muscle strength training on elderly cough function. Arch Gerontol Geriatr. 2009 48(3):361-6.
  12. Sapienza CM. Respiratory muscle strength training applications. Curr Opin Otolaryngol Head Neck Surg. 2008 16(3):216-20.
  13. Wheeler-Hegland KM, Rosenbek JC, Sapienza CM. Submental sEMG and hyoid movement during Mendelsohn maneuver, effortful swallow, and expiratory muscle strength training. J Speech Lang Hear Res. 2008 51(5):1072-87.
  14. Pitts T, Bolser D, Rosenbek J, Troche M, Okun MS, Sapienza C. Impact of expiratory muscle strength training on voluntary cough and swallow function in Parkinson disease. Chest. 2009 135(5):1301-8.
  15. Troche MS, Okun MS, Rosenbek JC, Musson N, Fernandez HH, Rodriguez R, Romrell J, Pitts T, Wheeler-Hegland KM, Sapienza CM. Aspiration and swallowing in Parkinson disease and rehabilitation with EMST: a randomized trial. Neurology. 2010 23;75(21):1912-9.
  16. Sapienza C, Troche M, Pitts T, Davenport P. Respiratory strength training: concept and intervention outcomes. Semin Speech Lang. 2011 32(1):21-30.
  17. Olsen, D.C., P.W. Davenport, C.M. Sapienza, A.D. Martin and M. Knafelc  Specific Expiratory Muscle Strength Training (EMST) in Adult Male Deep Water Divers. FASEB Journal, 2001.
  18. Hoffman, B., J.L. Lehman, P.W. Davenport, A.D. Martin and C.M. Sapienza. The effects of expiratory pressure threshold training on “high risk” singers. Annual Symposium on the Care of the Professional Voice, 2000.
  19. Baker, S., C. Sapienza, P.W. Davenport, W.S. Brown and H. Rothman. Evaluation of Expiratory Muscle Strength Training Paradigms: Effects on Ventilation, Cough and Voice. 32nd Annual Symposium: Care of the Professional Voice, 2003.
  20. Hoffman Ruddy, B., C. Sapienza, P.W. Davenport, J. Lehman and B. Spector. Expiratory Pressure Threshold Training on Vocal Percussion Performers. 32nd Annual Symposium: Care of the Professional Voice, 2003.
  21. Baker, S., C,M, Sapienza, and P.W. Davenport. Expiratory Muscle Strength Training: Effects on Speech and Cough Production. Twelfth Biennial Conference on Motor Speech: Motor Speech Disorders & Speech Motor Control. 2004.
  22. Fitsimones,L.B., C. M. Sapienza and P. W. Davenport. The effect of expiratory muscle strength training on low cervical and thoracic SCI patients. American Thoracic Society,  2004.    
  23. Wingate, J.M., Shrivastav, R., Brown, W.S., Davenport, P., & Sapienza, C. Therapy outcomes for professional voice users following combined modality treatment: final results. 34th Annual Symposium of the voice Foundation: Care of the Professional Voice, 2005.
  24. Kim, J., C.M. Sapienza and P.W. Davenport. Expiratory Muscle Strength Training for the Elderly: A Preliminary Study. American Speech and Hearing Association, 2005.
  25. Jaeock, K., P.W. Davenport and C.M. Sapienza. Outcomes of Expiratory Muscle Strength Training for the Elderly. American Speech and Hearing Association, 2006.
  26. Kim, J., P.W. Davenport and C.M. Sapienza. The effect of expiratory muscle strength training of sedentary elderly humans on irritant elicited cough. The 4th International Symposium on Cough, 2006.
  27. Bernhardt, V., S.M. Nedrud, G. Troy and P.W. Davenport. The Effects of Expiratory Muscle Strength Training (EMST) in Elite College Swimmers. FASEB J, 24:618.4, 2010.
  28. Bernhardt, V., S.M. Nedrud, M.T. Hotchkiss and P.W. Davenport. Expiratory Muscle Strength Training on Subjective Ratings and Performance in Elite Swimmers. International Society for the Advancement of Respiratory Psychophysiology (ISARP), 2011.

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