Effects of the head lift exercise and neuromuscular electrical stimulation on swallowing muscles activity in healthy older adults: a randomized pilot study
Authors Poorjavad M, Talebian Moghadam S, Ansari NN
Received 17 March 2019
Accepted for publication 18 May 2019
Published 21 June 2019 Volume 2019:14 Pages 1131—1140
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 2
Editor who approved publication: Dr Richard Walker
Marziyeh Poorjavad,1 Saeed Talebian Moghadam,2 Noureddin Nakhostin Ansari2
1Department of Speech Therapy, School of Rehabilitation, Isfahan University of Medical Sciences, Isfahan, Iran; 2Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
Purpose: Swallowing physiology exhibits several changes in advanced ages. The present study aimed to investigate and compare effects of a period of the head lift exercise (HLE) and neuromuscular electrical stimulation (NMES) on swallowing muscles activity in healthy elderly.
Patients and methods: A total of 23 older adults were randomized to either the HLE or NMES group for ten therapy sessions. They received pre- and post-therapy surface electromyography (sEMG) during water swallowing.
Results: For the HLE group, duration of suprahyoid muscles activity was significantly reduced at post-intervention compared to pre-intervention (p=0.036). Moreover after treatments, duration and latency between onset and peak amplitude of suprahyoid muscles activity was significantly shorter in the HLE group compare to the NMES group (respectively, p=0.007 and p=0.003).
Conclusion: Our findings suggest that the HLE, against the NMES, may be effective in reducing some aging effects on the suprahyoid muscles activity, especially in elders who demonstrate prolonged duration and latency between onset and peak of the suprahyoid muscles activity during swallowing.
Keywords: deglutition, aging, electromyography, exercise, electric stimulation therapy
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