Skip to main content
Top
Published in: Dysphagia 4/2015

01-08-2015 | Original Article

Effects of Strengthening Exercises on Swallowing Musculature and Function in Senior Healthy Subjects: a Prospective Effectiveness and Feasibility Study

Authors: S. A. C. Kraaijenga, L. van der Molen, M. M. Stuiver, H. J. Teertstra, F. J. M. Hilgers, M. W. M. van den Brekel

Published in: Dysphagia | Issue 4/2015

Login to get access

Abstract

Head and neck cancer (HNC) patients may develop dysphagia due to muscle atrophy and fibrosis following chemoradiotherapy. Strengthening of the swallowing muscles through therapeutic exercise is potentially effective for improving swallowing function. We hypothesize that a customized Swallow Exercise Aid (SEA), developed for isometric and isokinetic strengthening exercises (against resistance), can help to functionally strengthen the suprahyoid musculature, which in turn can improve swallowing function. An effectiveness/feasibility study was carried out with ten senior healthy volunteers, who performed exercises 3 times per day for 6 weeks. Exercises included chin tuck against resistance (CTAR), jaw opening against resistance (JOAR), and effortful swallow exercises with the SEA. Multidimensional assessment consisted of measurements of maximum chin tuck and jaw opening strength, maximum tongue strength/endurance, suprahyoid muscle volume, hyoid bone displacement, swallowing transport times, occurrence of laryngeal penetration/aspiration and/or contrast residue, maximum mouth opening, feasibility/compliance (questionnaires), and subjective swallowing complaints (SWAL-QOL). After 6-weeks exercise, mean chin tuck strength, jaw opening strength, anterior tongue strength, suprahyoid muscle volume, and maximum mouth opening significantly increased (p < .05). Feasibility and compliance (median 86 %, range 48–100 %) of the SEA exercises were good. This prospective effectiveness/feasibility study on the effects of CTAR/JOAR isometric and isokinetic strengthening exercises on swallowing musculature and function shows that senior healthy subjects are able to significantly increase swallowing muscle strength and volume after a 6-week training period. These positive results warrant further investigation of effectiveness and feasibility of these SEA exercises in HNC patients with dysphagia.
Literature
1.
go back to reference Logemann JA. Evaluation and treatment of swallowing disorders. 2nd ed. Austin: Pro-ed; 1998. Logemann JA. Evaluation and treatment of swallowing disorders. 2nd ed. Austin: Pro-ed; 1998.
2.
go back to reference Perlman AL, Schulze-Delrieu KS. Deglutition and its disorders. San Diego: Singular Publishing; 1997. Perlman AL, Schulze-Delrieu KS. Deglutition and its disorders. San Diego: Singular Publishing; 1997.
3.
go back to reference Pearson WG Jr, Hindson DF, Langmore SE, Zumwalt AC. Evaluating swallowing muscles essential for hyolaryngeal elevation by using muscle functional magnetic resonance imaging. Int J Radiat Oncol Biol Phys. 2013;85(3):735–40.PubMedCentralPubMedCrossRef Pearson WG Jr, Hindson DF, Langmore SE, Zumwalt AC. Evaluating swallowing muscles essential for hyolaryngeal elevation by using muscle functional magnetic resonance imaging. Int J Radiat Oncol Biol Phys. 2013;85(3):735–40.PubMedCentralPubMedCrossRef
4.
go back to reference Lazarus CL, Logemann JA, Pauloski BR, Colangelo LA, Kahrilas PJ, Mittal BB, Pierce M. Swallowing disorders in head and neck cancer patients treated with radiotherapy and adjuvant chemotherapy. Laryngoscope. 1996;106(9 Pt 1):1157–66.PubMedCrossRef Lazarus CL, Logemann JA, Pauloski BR, Colangelo LA, Kahrilas PJ, Mittal BB, Pierce M. Swallowing disorders in head and neck cancer patients treated with radiotherapy and adjuvant chemotherapy. Laryngoscope. 1996;106(9 Pt 1):1157–66.PubMedCrossRef
5.
go back to reference Smith RV, Kotz T, Beitler JJ, Wadler S. Long-term swallowing problems after organ preservation therapy with concomitant radiation therapy and intravenous hydroxyurea: initial results. Arch Otolaryngol Head Neck Surg. 2000;126(3):384–9.PubMedCrossRef Smith RV, Kotz T, Beitler JJ, Wadler S. Long-term swallowing problems after organ preservation therapy with concomitant radiation therapy and intravenous hydroxyurea: initial results. Arch Otolaryngol Head Neck Surg. 2000;126(3):384–9.PubMedCrossRef
6.
go back to reference Nguyen NP, Moltz CC, Frank C, Vos P, Smith HJ, Karlsson U, Dutta S, Midyett FA, Barloon J, Sallah S. Dysphagia following chemoradiation for locally advanced head and neck cancer. Ann Oncol. 2004;15(3):383–8.PubMedCrossRef Nguyen NP, Moltz CC, Frank C, Vos P, Smith HJ, Karlsson U, Dutta S, Midyett FA, Barloon J, Sallah S. Dysphagia following chemoradiation for locally advanced head and neck cancer. Ann Oncol. 2004;15(3):383–8.PubMedCrossRef
7.
go back to reference Agarwal J, Palwe V, Dutta D, Gupta T, Laskar SG, Budrukkar A, Murthy V, Chaturvedi P, Pai P, Chaukar D, D’Cruz AK, Kulkarni S, Kulkarni A, Baccher G, Shrivastava SK. Objective assessment of swallowing function after definitive concurrent (chemo)radiotherapy in patients with head and neck cancer. Dysphagia. 2011;26(4):399–406.PubMedCrossRef Agarwal J, Palwe V, Dutta D, Gupta T, Laskar SG, Budrukkar A, Murthy V, Chaturvedi P, Pai P, Chaukar D, D’Cruz AK, Kulkarni S, Kulkarni A, Baccher G, Shrivastava SK. Objective assessment of swallowing function after definitive concurrent (chemo)radiotherapy in patients with head and neck cancer. Dysphagia. 2011;26(4):399–406.PubMedCrossRef
8.
go back to reference Lazarus CL, Logemann JA, Pauloski BR, Rademaker AW, Larson CR, Mittal BB, Pierce M. Swallowing and tongue function following treatment for oral and oropharyngeal cancer. J Speech Lang Hear Res. 2000;43(4):1011–23.PubMedCrossRef Lazarus CL, Logemann JA, Pauloski BR, Rademaker AW, Larson CR, Mittal BB, Pierce M. Swallowing and tongue function following treatment for oral and oropharyngeal cancer. J Speech Lang Hear Res. 2000;43(4):1011–23.PubMedCrossRef
9.
go back to reference Robbins J, Kays SA, Gangnon RE, Hind JA, Hewitt AL, Gentry LR, Taylor AJ. The effects of lingual exercise in stroke patients with dysphagia. Arch Phys Med Rehabil. 2007;88(2):150–8.PubMedCrossRef Robbins J, Kays SA, Gangnon RE, Hind JA, Hewitt AL, Gentry LR, Taylor AJ. The effects of lingual exercise in stroke patients with dysphagia. Arch Phys Med Rehabil. 2007;88(2):150–8.PubMedCrossRef
10.
go back to reference Clark HM, Henson PA, Barber WD, Stierwalt JA, Sherrill M. Relationships among subjective and objective measures of tongue strength and oral phase swallowing impairments. Am J Speech Lang Pathol. 2003;12(1):40–50.PubMedCrossRef Clark HM, Henson PA, Barber WD, Stierwalt JA, Sherrill M. Relationships among subjective and objective measures of tongue strength and oral phase swallowing impairments. Am J Speech Lang Pathol. 2003;12(1):40–50.PubMedCrossRef
11.
go back to reference Lazarus C. Tongue strength and exercise in healthy individuals and in head and neck cancer patients. Semin Speech Lang. 2006;27(4):260–7.PubMedCrossRef Lazarus C. Tongue strength and exercise in healthy individuals and in head and neck cancer patients. Semin Speech Lang. 2006;27(4):260–7.PubMedCrossRef
12.
go back to reference Chen AM, Li BQ, Lau DH, Farwell DG, Luu Q, Stuart K, Newman K, Purdy JA, Vijayakumar S. Evaluating the role of prophylactic gastrostomy tube placement prior to definitive chemoradiotherapy for head and neck cancer. Int J Radiat Oncol Biol Phys. 2010;78(4):1026–32.PubMedCrossRef Chen AM, Li BQ, Lau DH, Farwell DG, Luu Q, Stuart K, Newman K, Purdy JA, Vijayakumar S. Evaluating the role of prophylactic gastrostomy tube placement prior to definitive chemoradiotherapy for head and neck cancer. Int J Radiat Oncol Biol Phys. 2010;78(4):1026–32.PubMedCrossRef
13.
go back to reference Kulbersh BD, Rosenthal EL, McGrew BM, Duncan RD, McColloch NL, Carroll WR, Magnuson JS. Pretreatment, preoperative swallowing exercises may improve dysphagia quality of life. Laryngoscope. 2006;116(6):883–6.PubMedCrossRef Kulbersh BD, Rosenthal EL, McGrew BM, Duncan RD, McColloch NL, Carroll WR, Magnuson JS. Pretreatment, preoperative swallowing exercises may improve dysphagia quality of life. Laryngoscope. 2006;116(6):883–6.PubMedCrossRef
14.
go back to reference Carroll WR, Locher JL, Canon CL, Bohannon IA, McColloch NL, Magnuson JS. Pretreatment swallowing exercises improve swallow function after chemoradiation. Laryngoscope. 2008;118(1):39–43.PubMedCrossRef Carroll WR, Locher JL, Canon CL, Bohannon IA, McColloch NL, Magnuson JS. Pretreatment swallowing exercises improve swallow function after chemoradiation. Laryngoscope. 2008;118(1):39–43.PubMedCrossRef
15.
go back to reference van der Molen L, van Rossum MA, Burkhead LM, Smeele LE, Rasch CR, Hilgers FJ. A randomized preventive rehabilitation trial in advanced head and neck cancer patients treated with chemoradiotherapy: feasibility, compliance, and short-term effects. Dysphagia. 2011;26(2):155–70.PubMedCentralPubMedCrossRef van der Molen L, van Rossum MA, Burkhead LM, Smeele LE, Rasch CR, Hilgers FJ. A randomized preventive rehabilitation trial in advanced head and neck cancer patients treated with chemoradiotherapy: feasibility, compliance, and short-term effects. Dysphagia. 2011;26(2):155–70.PubMedCentralPubMedCrossRef
16.
go back to reference Carnaby-Mann G, Crary MA, Schmalfuss I, Amdur R. “Pharyngocise”: randomized controlled trial of preventative exercises to maintain muscle structure and swallowing function during head-and-neck chemoradiotherapy. Int J Radiat Oncol Biol Phys. 2012;83(1):210–9.PubMedCrossRef Carnaby-Mann G, Crary MA, Schmalfuss I, Amdur R. “Pharyngocise”: randomized controlled trial of preventative exercises to maintain muscle structure and swallowing function during head-and-neck chemoradiotherapy. Int J Radiat Oncol Biol Phys. 2012;83(1):210–9.PubMedCrossRef
17.
go back to reference van der Molen L, van Rossum MA, Rasch CR, Smeele LE, Hilgers FJ. Two-year results of a prospective preventive swallowing rehabilitation trial in patients treated with chemoradiation for advanced head and neck cancer. Eur Arch Otorhinolaryngol. 2014;271(5):1257–70.PubMedCrossRef van der Molen L, van Rossum MA, Rasch CR, Smeele LE, Hilgers FJ. Two-year results of a prospective preventive swallowing rehabilitation trial in patients treated with chemoradiation for advanced head and neck cancer. Eur Arch Otorhinolaryngol. 2014;271(5):1257–70.PubMedCrossRef
18.
go back to reference Logemann JA, Pauloski BR, Rademaker AW, Colangelo LA. Super-supraglottic swallow in irradiated head and neck cancer patients. Head Neck. 1997;19(6):535–40.PubMedCrossRef Logemann JA, Pauloski BR, Rademaker AW, Colangelo LA. Super-supraglottic swallow in irradiated head and neck cancer patients. Head Neck. 1997;19(6):535–40.PubMedCrossRef
19.
go back to reference Lazarus C, Logemann JA, Gibbons P. Effects of maneuvers on swallowing function in a dysphagic oral cancer patient. Head Neck. 1993;15(5):419–24.PubMedCrossRef Lazarus C, Logemann JA, Gibbons P. Effects of maneuvers on swallowing function in a dysphagic oral cancer patient. Head Neck. 1993;15(5):419–24.PubMedCrossRef
20.
go back to reference Hind JA, Nicosia MA, Roecker EB, Carnes ML, Robbins J. Comparison of effortful and noneffortful swallows in healthy middle-aged and older adults. Arch Phys Med Rehabil. 2001;82(12):1661–5.PubMedCrossRef Hind JA, Nicosia MA, Roecker EB, Carnes ML, Robbins J. Comparison of effortful and noneffortful swallows in healthy middle-aged and older adults. Arch Phys Med Rehabil. 2001;82(12):1661–5.PubMedCrossRef
21.
go back to reference Lazarus C, Logemann JA, Song CW, Rademaker AW, Kahrilas PJ. Effects of voluntary maneuvers on tongue base function for swallowing. Folia Phoniatr Logop. 2002;54(4):171–6.PubMedCrossRef Lazarus C, Logemann JA, Song CW, Rademaker AW, Kahrilas PJ. Effects of voluntary maneuvers on tongue base function for swallowing. Folia Phoniatr Logop. 2002;54(4):171–6.PubMedCrossRef
22.
go back to reference Kahrilas PJ, Logemann JA, Krugler C, Flanagan E. Volitional augmentation of upper esophageal sphincter opening during swallowing. Am J Physiol. 1991;260(3 Pt 1):G450–6.PubMed Kahrilas PJ, Logemann JA, Krugler C, Flanagan E. Volitional augmentation of upper esophageal sphincter opening during swallowing. Am J Physiol. 1991;260(3 Pt 1):G450–6.PubMed
23.
go back to reference Shaker R, Kern M, Bardan E, Taylor A, Stewart ET, Hoffmann RG, Arndorfer RC, Hofmann C, Bonnevier J. Augmentation of deglutitive upper esophageal sphincter opening in the elderly by exercise. Am J Physiol. 1997;272(6 Pt 1):G1518–22.PubMed Shaker R, Kern M, Bardan E, Taylor A, Stewart ET, Hoffmann RG, Arndorfer RC, Hofmann C, Bonnevier J. Augmentation of deglutitive upper esophageal sphincter opening in the elderly by exercise. Am J Physiol. 1997;272(6 Pt 1):G1518–22.PubMed
24.
go back to reference Shaker R, Easterling C, Kern M, Nitschke T, Massey B, Daniels S, Grande B, Kazandjian M, Dikeman K. Rehabilitation of swallowing by exercise in tube-fed patients with pharyngeal dysphagia secondary to abnormal UES opening. Gastroenterology. 2002;122(5):1314–21.PubMedCrossRef Shaker R, Easterling C, Kern M, Nitschke T, Massey B, Daniels S, Grande B, Kazandjian M, Dikeman K. Rehabilitation of swallowing by exercise in tube-fed patients with pharyngeal dysphagia secondary to abnormal UES opening. Gastroenterology. 2002;122(5):1314–21.PubMedCrossRef
25.
go back to reference Logemann JA, Rademaker A, Pauloski BR, Kelly A, Stangl-McBreen C, Antinoja J, Grande B, Farquharson J, Kern M, Easterling C, Shaker R. A randomized study comparing the Shaker exercise with traditional therapy: a preliminary study. Dysphagia. 2009;24(4):403–11.PubMedCentralPubMedCrossRef Logemann JA, Rademaker A, Pauloski BR, Kelly A, Stangl-McBreen C, Antinoja J, Grande B, Farquharson J, Kern M, Easterling C, Shaker R. A randomized study comparing the Shaker exercise with traditional therapy: a preliminary study. Dysphagia. 2009;24(4):403–11.PubMedCentralPubMedCrossRef
26.
go back to reference Easterling C, Grande B, Kern M, Sears K, Shaker R. Attaining and maintaining isometric and isokinetic goals of the Shaker exercise. Dysphagia. 2005;20(2):133–8.PubMedCrossRef Easterling C, Grande B, Kern M, Sears K, Shaker R. Attaining and maintaining isometric and isokinetic goals of the Shaker exercise. Dysphagia. 2005;20(2):133–8.PubMedCrossRef
27.
go back to reference Yoon WL, Khoo JK, Rickard Liow SJ. Chin tuck against resistance (CTAR): new method for enhancing suprahyoid muscle activity using a Shaker-type exercise. Dysphagia. 2014;29(2):243–8.PubMedCrossRef Yoon WL, Khoo JK, Rickard Liow SJ. Chin tuck against resistance (CTAR): new method for enhancing suprahyoid muscle activity using a Shaker-type exercise. Dysphagia. 2014;29(2):243–8.PubMedCrossRef
28.
go back to reference Buchbinder D, Currivan RB, Kaplan AJ, Urken ML. Mobilization regimens for the prevention of jaw hypomobility in the radiated patient: a comparison of three techniques. J Oral Maxillofac Surg. 1993;51(8):863–7.PubMedCrossRef Buchbinder D, Currivan RB, Kaplan AJ, Urken ML. Mobilization regimens for the prevention of jaw hypomobility in the radiated patient: a comparison of three techniques. J Oral Maxillofac Surg. 1993;51(8):863–7.PubMedCrossRef
29.
go back to reference Kraaijenga S, van der Molen L, van Tinteren H, Hilgers F, Smeele L. Treatment of myogenic temporomandibular disorder: a prospective randomized clinical trial, comparing a mechanical stretching device (TheraBite) with standard physical therapy exercise. Cranio. 2014;32(3):208–16.PubMedCrossRef Kraaijenga S, van der Molen L, van Tinteren H, Hilgers F, Smeele L. Treatment of myogenic temporomandibular disorder: a prospective randomized clinical trial, comparing a mechanical stretching device (TheraBite) with standard physical therapy exercise. Cranio. 2014;32(3):208–16.PubMedCrossRef
30.
go back to reference Rinkel RN, Verdonck-de Leeuw IM, Langendijk JA, van Reij EJ, Aaronson NK, Leemans CR. The psychometric and clinical validity of the SWAL-QOL questionnaire in evaluating swallowing problems experienced by patients with oral and oropharyngeal cancer. Oral Oncol. 2009;45(8):e67–71.PubMedCrossRef Rinkel RN, Verdonck-de Leeuw IM, Langendijk JA, van Reij EJ, Aaronson NK, Leemans CR. The psychometric and clinical validity of the SWAL-QOL questionnaire in evaluating swallowing problems experienced by patients with oral and oropharyngeal cancer. Oral Oncol. 2009;45(8):e67–71.PubMedCrossRef
31.
go back to reference Mehanna H, Paleri V, West CM, Nutting C. Head and neck cancer—Part 1: epidemiology, presentation, and prevention. BMJ. 2010;341:c4684.PubMedCrossRef Mehanna H, Paleri V, West CM, Nutting C. Head and neck cancer—Part 1: epidemiology, presentation, and prevention. BMJ. 2010;341:c4684.PubMedCrossRef
32.
go back to reference Jemal A, Bray F, Center MM, Ferlay J, Ward E, Forman D. Global cancer statistics. CA Cancer J Clin. 2011;61(2):69–90.PubMedCrossRef Jemal A, Bray F, Center MM, Ferlay J, Ward E, Forman D. Global cancer statistics. CA Cancer J Clin. 2011;61(2):69–90.PubMedCrossRef
33.
go back to reference 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.PubMedCrossRef 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.PubMedCrossRef
34.
go back to reference Wada S, Tohara H, Iida T, Inoue M, Sato M, Ueda K. Jaw-opening exercise for insufficient opening of upper esophageal sphincter. Arch Phys Med Rehabil. 2012;93(11):1995–9.PubMedCrossRef Wada S, Tohara H, Iida T, Inoue M, Sato M, Ueda K. Jaw-opening exercise for insufficient opening of upper esophageal sphincter. Arch Phys Med Rehabil. 2012;93(11):1995–9.PubMedCrossRef
35.
go back to reference Adams V, Mathisen B, Baines S, Lazarus C, Callister R. A systematic review and meta-analysis of measurements of tongue and hand strength and endurance using the Iowa Oral Performance Instrument (IOPI). Dysphagia. 2013;28(3):350–69.PubMedCrossRef Adams V, Mathisen B, Baines S, Lazarus C, Callister R. A systematic review and meta-analysis of measurements of tongue and hand strength and endurance using the Iowa Oral Performance Instrument (IOPI). Dysphagia. 2013;28(3):350–69.PubMedCrossRef
36.
go back to reference Hewitt A, Hind J, Kays S, Nicosia M, Doyle J, Tompkins W, Gangnon R, Robbins J. Standardized instrument for lingual pressure measurement. Dysphagia. 2008;23(1):16–25.PubMedCrossRef Hewitt A, Hind J, Kays S, Nicosia M, Doyle J, Tompkins W, Gangnon R, Robbins J. Standardized instrument for lingual pressure measurement. Dysphagia. 2008;23(1):16–25.PubMedCrossRef
37.
go back to reference Leonard RJ, Kendall KA. Dysphagia assessment and treatment planning: a team approach. San Diego: Singular Pub. Group; 1997. Leonard RJ, Kendall KA. Dysphagia assessment and treatment planning: a team approach. San Diego: Singular Pub. Group; 1997.
38.
go back to reference Leonard RJ, Kendall KA, McKenzie S, Goncalves MI, Walker A. Structural displacements in normal swallowing: a videofluoroscopic study. Dysphagia. 2000;15(3):146–52.PubMedCrossRef Leonard RJ, Kendall KA, McKenzie S, Goncalves MI, Walker A. Structural displacements in normal swallowing: a videofluoroscopic study. Dysphagia. 2000;15(3):146–52.PubMedCrossRef
39.
go back to reference Kendall KA, McKenzie S, Leonard RJ, Goncalves MI, Walker A. Timing of events in normal swallowing: a videofluoroscopic study. Dysphagia. 2000;15(2):74–83.PubMedCrossRef Kendall KA, McKenzie S, Leonard RJ, Goncalves MI, Walker A. Timing of events in normal swallowing: a videofluoroscopic study. Dysphagia. 2000;15(2):74–83.PubMedCrossRef
40.
go back to reference Rosenbek JC, Robbins JA, Roecker EB, Coyle JL, Wood JL. A penetration-aspiration scale. Dysphagia. 1996;11(2):93–8.PubMedCrossRef Rosenbek JC, Robbins JA, Roecker EB, Coyle JL, Wood JL. A penetration-aspiration scale. Dysphagia. 1996;11(2):93–8.PubMedCrossRef
41.
go back to reference Lemmens J, Bours GJ, Limburg M, Beurskens AJ. The feasibility and test-retest reliability of the Dutch Swal-Qol adapted interview version for dysphagic patients with communicative and/or cognitive problems. Qual Life Res. 2013;22(4):891–5.PubMedCentralPubMedCrossRef Lemmens J, Bours GJ, Limburg M, Beurskens AJ. The feasibility and test-retest reliability of the Dutch Swal-Qol adapted interview version for dysphagic patients with communicative and/or cognitive problems. Qual Life Res. 2013;22(4):891–5.PubMedCentralPubMedCrossRef
42.
go back to reference Crary MA, Carnaby Mann GD, Groher ME. Biomechanical correlates of surface electromyography signals obtained during swallowing by healthy adults. J Speech Lang Hear Res. 2006;49(1):186–93.PubMedCrossRef Crary MA, Carnaby Mann GD, Groher ME. Biomechanical correlates of surface electromyography signals obtained during swallowing by healthy adults. J Speech Lang Hear Res. 2006;49(1):186–93.PubMedCrossRef
43.
go back to reference Palmer PM, Luschei ES, Jaffe D, McCulloch TM. Contributions of individual muscles to the submental surface electromyogram during swallowing. J Speech Lang Hear Res. 1999;42(6):1378–91.PubMedCrossRef Palmer PM, Luschei ES, Jaffe D, McCulloch TM. Contributions of individual muscles to the submental surface electromyogram during swallowing. J Speech Lang Hear Res. 1999;42(6):1378–91.PubMedCrossRef
Metadata
Title
Effects of Strengthening Exercises on Swallowing Musculature and Function in Senior Healthy Subjects: a Prospective Effectiveness and Feasibility Study
Authors
S. A. C. Kraaijenga
L. van der Molen
M. M. Stuiver
H. J. Teertstra
F. J. M. Hilgers
M. W. M. van den Brekel
Publication date
01-08-2015
Publisher
Springer US
Published in
Dysphagia / Issue 4/2015
Print ISSN: 0179-051X
Electronic ISSN: 1432-0460
DOI
https://doi.org/10.1007/s00455-015-9611-8

Other articles of this Issue 4/2015

Dysphagia 4/2015 Go to the issue