Abstract
Purpose: The purpose of this study was to compare the biomechanics of the effortful pitch glide (EPG) with swallowing using dynamic MRI. The EPG is a combination of a pitch glide and a pharyngeal squeeze maneuver for targeting laryngeal and pharyngeal muscles. The authors hypothesized that the EPG would elicit significantly greater structural excursions of anterior hyoid, superior hyoid, hyolaryngeal approximation, laryngeal elevation, and lateral pharyngeal wall medialization compared with swallowing. Method: Eleven healthy, young subjects with a mean age of 25 were recruited. The EPG was first taught and verified via laryngoscopy. Then 2-planar (coronal and sagittal) dynamic MRI acquisitions captured 10 repeated swallows and 3 EPGs. Kinematic analyses of minimum and maximum excursion of anatomical landmarks were calculated. Results: Results showed a nonsignificant difference between the 2 tasks for range of excursion with all measured biomechanics except for superior hyoid, where the swallow showed significantly greater excursion. This indicated that swallowing and EPG biomechanics were comparable, lending support for the potential use of the EPG as another nonswallowing exercise. Conclusion: Findings suggest EPG may be an effective exercise to target several important swallowing muscles, especially the long pharyngeal muscles that elevate the larynx and shorten the pharynx in swallowing.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1243-1250 |
| Number of pages | 8 |
| Journal | Journal of Speech, Language, and Hearing Research |
| Volume | 57 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jan 1 2014 |
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Keywords
- Dynamic MRI
- Exercise
- Pharyngeal squeeze maneuver
- Pitch glide
- Swallow
ASJC Scopus subject areas
- Language and Linguistics
- Linguistics and Language
- Speech and Hearing
Cite this
Effortful pitch glide : A potential new exercise evaluated by dynamic MRI. / Miloro, Keri Vasquez; Pearson, William Gordon; Langmore, Susan E.
In: Journal of Speech, Language, and Hearing Research, Vol. 57, No. 4, 01.01.2014, p. 1243-1250.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effortful pitch glide
T2 - A potential new exercise evaluated by dynamic MRI
AU - Miloro, Keri Vasquez
AU - Pearson, William Gordon
AU - Langmore, Susan E.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Purpose: The purpose of this study was to compare the biomechanics of the effortful pitch glide (EPG) with swallowing using dynamic MRI. The EPG is a combination of a pitch glide and a pharyngeal squeeze maneuver for targeting laryngeal and pharyngeal muscles. The authors hypothesized that the EPG would elicit significantly greater structural excursions of anterior hyoid, superior hyoid, hyolaryngeal approximation, laryngeal elevation, and lateral pharyngeal wall medialization compared with swallowing. Method: Eleven healthy, young subjects with a mean age of 25 were recruited. The EPG was first taught and verified via laryngoscopy. Then 2-planar (coronal and sagittal) dynamic MRI acquisitions captured 10 repeated swallows and 3 EPGs. Kinematic analyses of minimum and maximum excursion of anatomical landmarks were calculated. Results: Results showed a nonsignificant difference between the 2 tasks for range of excursion with all measured biomechanics except for superior hyoid, where the swallow showed significantly greater excursion. This indicated that swallowing and EPG biomechanics were comparable, lending support for the potential use of the EPG as another nonswallowing exercise. Conclusion: Findings suggest EPG may be an effective exercise to target several important swallowing muscles, especially the long pharyngeal muscles that elevate the larynx and shorten the pharynx in swallowing.
AB - Purpose: The purpose of this study was to compare the biomechanics of the effortful pitch glide (EPG) with swallowing using dynamic MRI. The EPG is a combination of a pitch glide and a pharyngeal squeeze maneuver for targeting laryngeal and pharyngeal muscles. The authors hypothesized that the EPG would elicit significantly greater structural excursions of anterior hyoid, superior hyoid, hyolaryngeal approximation, laryngeal elevation, and lateral pharyngeal wall medialization compared with swallowing. Method: Eleven healthy, young subjects with a mean age of 25 were recruited. The EPG was first taught and verified via laryngoscopy. Then 2-planar (coronal and sagittal) dynamic MRI acquisitions captured 10 repeated swallows and 3 EPGs. Kinematic analyses of minimum and maximum excursion of anatomical landmarks were calculated. Results: Results showed a nonsignificant difference between the 2 tasks for range of excursion with all measured biomechanics except for superior hyoid, where the swallow showed significantly greater excursion. This indicated that swallowing and EPG biomechanics were comparable, lending support for the potential use of the EPG as another nonswallowing exercise. Conclusion: Findings suggest EPG may be an effective exercise to target several important swallowing muscles, especially the long pharyngeal muscles that elevate the larynx and shorten the pharynx in swallowing.
KW - Dynamic MRI
KW - Exercise
KW - Pharyngeal squeeze maneuver
KW - Pitch glide
KW - Swallow
UR - http://www.scopus.com/inward/record.url?scp=84905715267&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905715267&partnerID=8YFLogxK
U2 - 10.1044/2014_JSLHR-S-13-0168
DO - 10.1044/2014_JSLHR-S-13-0168
M3 - Article
C2 - 24686494
AN - SCOPUS:84905715267
VL - 57
SP - 1243
EP - 1250
JO - Journal of Speech, Language, and Hearing Research
JF - Journal of Speech, Language, and Hearing Research
SN - 1092-4388
IS - 4
ER -