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Dysphagia

, Volume 31, Issue 3, pp 452–461 | Cite as

A Randomized Trial Comparing Two Tongue-Pressure Resistance Training Protocols for Post-Stroke Dysphagia

  • Catriona M. Steele
  • Mark T. Bayley
  • Melanie Peladeau-Pigeon
  • Ahmed Nagy
  • Ashwini M. Namasivayam
  • Shauna L. Stokely
  • Talia Wolkin
Original Article

Abstract

The objective of this study was to compare the outcomes of two tongue resistance training protocols. One protocol (“tongue-pressure profile training”) emphasized the pressure-timing patterns that are typically seen in healthy swallows by focusing on gradual pressure release and saliva swallowing tasks. The second protocol (“tongue-pressure strength and accuracy training”) emphasized strength and accuracy in tongue-palate pressure generation and did not include swallowing tasks. A prospective, randomized, parallel allocation trial was conducted. Of 26 participants who were screened for eligibility, 14 received up to 24 sessions of treatment. Outcome measures of posterior tongue strength, oral bolus control, penetration–aspiration and vallecular residue were made based on videofluoroscopy analysis by blinded raters. Complete data were available for 11 participants. Significant improvements were seen in tongue strength and post-swallow vallecular residue with thin liquids, regardless of treatment condition. Stage transition duration (a measure of the duration of the bolus presence in the pharynx prior to swallow initiation, which had been chosen to capture impairments in oral bolus control) showed no significant differences. Similarly, significant improvements were not seen in median scores on the penetration–aspiration scale. This trial suggests that tongue strength can be improved with resistance training for individuals with tongue weakness following stroke. We conclude that improved penetration–aspiration does not necessarily accompany improvements in tongue strength; however, tongue-pressure resistance training does appear to be effective for reducing thin liquid vallecular residue.

Keywords

Deglutition Deglutition disorders Dysphagia Rehabilitation Tongue 

Notes

Acknowledgments

This study was funded by a grant-in-aid from the Heart and Stroke Foundation of Canada. The authors would like to acknowledge the assistance of Carly Barbon, Vivian Chak, Amy Dhindsa, Robbyn Draimin, Sonya Torreiter, and Teresa Valenzano with videofluoroscopy rating and analysis.

Funding

This trial was funded through Grant-in-Aid NA 7337 from the Heart and Stroke Foundation of Canada.

Compliance with Ethical Standards

Conflicts of Interest

The authors have no conflicts of interest to disclose.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Swallowing Rehabilitation Research LaboratoryToronto Rehabilitation Institute – University Health NetworkTorontoCanada
  2. 2.University of TorontoTorontoCanada
  3. 3.University of FayoumFayoumEgypt

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