Physiologic Adaptations to Modifying Resistive Load and Time Under Tension During Expiratory Muscle Strength Training.
Purpose: The purpose of this study was to test the impact of modifying resistive load and time under tension (TUT) on respiratory excursion, submental excitation, and ratings of perceived exertion/effort (RPE) during expiratory muscle strength training (EMST). Task specificity between EMST, cough, a...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 69; no. 8; pp. 3589 - 3622 |
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| Autores principales: | , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Speech-Language-Hearing Association
Aug2026
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=196185570&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 196185570 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Aug2026 vid: 69 iid: 8 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 196185570 10.1044/2026_JSLHR-25-00953 ppf: 3589 ppct: 33 formats: fmt: @attributes: type: P size: 28.5MB tig: atl: Physiologic Adaptations to Modifying Resistive Load and Time Under Tension During Expiratory Muscle Strength Training. aug: au: Dakin, Avery E. Rau, Sydney Villarreal-Cavazos, Katya Easterly, Kelly Huber, Jessica E. Garber, Carol Ewing Quinn, Lori Hegland, Karen W. Troche, Michelle S. affil: Laboratory for the Study of Upper Airway Dysfunction, Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY Speech Physiology Laboratory, Department of Communicative Disorders and Sciences, College of Arts and Sciences, University at Buffalo, NY EXerT Clinic for Exercise Testing and Prescription, Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY Neurorehabilitation Research Laboratory, Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY Laboratory for the Study of Upper Airway Dysfunction, Department of Speech, Language and Hearing Sciences, College of Public Health and Health Professions, University of Florida, Gainesville su: Exercise Task performance Respiratory muscle physiology Physiology of abdominal muscles Physiological adaptation Research funding Data analysis Kinematics Respiration Questionnaires Signal processing Descriptive statistics Muscle strength Resistance training Crossover trials Longitudinal method Electromyography Mathematical models Statistics Intraclass correlation Chin Theory Comparative studies Cough Deglutition Transducers Inter-observer reliability sug: subj: Exercise Task performance Semiconductor and other electronic component manufacturing Other Electronic Component Manufacturing Respiratory muscle physiology Physiology of abdominal muscles Physiological adaptation Research funding Data analysis Kinematics Respiration Questionnaires Signal processing Descriptive statistics Muscle strength Resistance training Crossover trials Longitudinal method Electromyography Mathematical models Statistics Intraclass correlation Chin Theory Comparative studies Cough Deglutition Transducers Inter-observer reliability ab: Purpose: The purpose of this study was to test the impact of modifying resistive load and time under tension (TUT) on respiratory excursion, submental excitation, and ratings of perceived exertion/effort (RPE) during expiratory muscle strength training (EMST). Task specificity between EMST, cough, and swallowing was also explored. Method: Participants were outfitted with respiratory bands, submental surface electromyography, and a microphone. Tasks included maximal expiratory pressure (MEP) testing, voluntary and reflex cough testing, cup sips, and EMST. EMST included three sets of 10 repetitions in four conditions: short (0.2 s) at 50% MEP, long (1 s) at 50% MEP, short at 75% MEP, and long at 75% MEP (L75). Outcomes were respiratory kinematics, cough airflow, submental excitation, and RPE. Multilevel models and pairwise comparisons were used for statistical analysis. Results: Twenty healthy adults (M = 27 ± 5 years) participated. There were significant effects between EMST conditions where rib cage excursion ranged from 5% to 24% (of maximum), abdominal excursion ranged from 6% to 19%, submental excitation ranged from 40% to 57%, and RPE varied (p < .05). Several pairwise contrasts during cough and swallowing showed no significant differences with EMST conditions. Submental excitation during L75 was higher than the swallowing condition (p = .03). Conclusions: Exercise parameters including resistive load and TUT that impacted the acute physiologic responses to EMST should be considered during exercise prescription to maximize physiologic adaptations and training specificity. Future research will examine the longitudinal impacts of modifying EMST exercise parameters on coughing and swallowing outcomes. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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