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Ng KB, Guiu Hernandez E, Erfmann KLC, Jones RD, Macrae P, Huckabee ML. Effect of Volitional Effort on Submental Surface Electromyographic Activity During Healthy Swallowing. Dysphagia 2021; 37:297-306. [PMID: 33687559 DOI: 10.1007/s00455-021-10278-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 02/24/2021] [Indexed: 11/30/2022]
Abstract
The effortful swallowing technique aims to compensate for or rehabilitate impaired swallowing by using maximal volitional effort to behaviorally modify aspects of swallowing physiology. Given that swallowing is a submaximal task, swallowing at submaximal levels has recently been suggested as a more task-specific therapeutic technique. The aim of this study was to investigate differences in muscle activity during minimum, regular, and maximum effort swallowing of different boluses and across different ages, with the goal of characterizing the task specificity of minimum effort and maximum effort swallowing. Forty-three healthy adults (22 female) representing four age groups (20-39, 40-59, 60-79, and 80 + years) participated in the study. They were verbally cued to swallow saliva and 5 mL water boluses using participant-determined minimum, regular, and maximum levels of effort, in randomized order. sEMG peak amplitude and duration of each swallow were measured. Linear mixed effects analyses demonstrated that compared to regular effort swallowing, maximum effort swallowing resulted in increased sEMG amplitude (p < .001) and prolonged duration (p < .001), while minimum effort swallowing resulted in decreased amplitude (p < .001) but no significant difference in duration (p = .06). These effects occurred regardless of age or bolus type. Differences in sEMG activity were smaller between regular and minimum effort swallowing than regular and maximum effort swallowing. Both increasing and decreasing volitional efforts during swallowing translate to significant modulation of muscle activity. However, regular swallowing is more similar to minimal effort swallowing. Results reinforce the concept of swallowing as a submaximal task, and provide insight into the development of sEMG biofeedback techniques for rehabilitation.
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Affiliation(s)
- Karen B Ng
- The University of Canterbury Rose Centre for Stroke Recovery and Research, Christchurch, New Zealand. .,School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand.
| | - Esther Guiu Hernandez
- The University of Canterbury Rose Centre for Stroke Recovery and Research, Christchurch, New Zealand.,School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand
| | - Kerstin L C Erfmann
- The University of Canterbury Rose Centre for Stroke Recovery and Research, Christchurch, New Zealand.,School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand
| | - Richard D Jones
- School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand.,Department of Electrical & Computer Engineering, University of Canterbury, Christchurch, New Zealand.,New Zealand Brain Research Institute, Christchurch, New Zealand.,Medical Physics & Bioengineering, Christchurch Hospital, Christchurch, New Zealand
| | - Phoebe Macrae
- The University of Canterbury Rose Centre for Stroke Recovery and Research, Christchurch, New Zealand.,School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand
| | - Maggie-Lee Huckabee
- The University of Canterbury Rose Centre for Stroke Recovery and Research, Christchurch, New Zealand.,School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand
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Zida A, Lavis JN, Sewankambo NK, Kouyate B, Ouedraogo S. Evaluating the Process and Extent of Institutionalization: A Case Study of a Rapid Response Unit for Health Policy in Burkina Faso. Int J Health Policy Manag 2018; 7:15-26. [PMID: 29325399 PMCID: PMC5745864 DOI: 10.15171/ijhpm.2017.39] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 03/15/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Good decision-making requires gathering and using sufficient information. Several knowledge translation platforms have been introduced in Burkina Faso to support evidence-informed decision-making. One of these is the rapid response service for health. This platform aims to provide quick access for policy-makers in Burkina Faso to highquality research evidence about health systems. The purpose of this study is to describe the process and extent of the institutionalization of the rapid response service. METHODS A qualitative case study design was used, drawing on interviews with policy-makers, together with documentary analysis. Previously used institutionalization frameworks were combined to guide the analysis. RESULTS Burkina Faso's rapid response service has largely reached the consolidation phase of the institutionalization process but not yet the final phase of maturity. The impetus for the project came from designated project leaders, who convinced policy-makers of the importance of the rapid response service, and obtained resources to run a pilot. During the expansion stage, additional policy-makers at national and sub-national levels began to use the service. Unit staff also tried to improve the way it was delivered, based on lessons learned during the pilot stage. The service has, however, stagnated at the consolidation stage, and not moved into the final phase of maturity. CONCLUSION The institutionalization process for the rapid response service in Burkina Faso has been fluid rather than linear, with some areas developing faster than others. The service has reached the consolidation stage, but now requires additional efforts to reach maturity.
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Affiliation(s)
- Andre Zida
- Clinical Epidemiology and Biostatistics Unit, College of Health Sciences, Makerere University, Kampala, Uganda
- Ministry of Health, Ouagadougou, Burkina Faso
| | - John N. Lavis
- McMaster Health Forum, Centre for Health Economics and Policy Analysis, McMaster University, Hamilton, ON, Canada
- Department of Health Research Methods, Evidence and Impact, and Department of Political Science, McMaster University, Hamilton, ON, Canada
| | - Nelson K. Sewankambo
- Clinical Epidemiology and Biostatistics Unit, College of Health Sciences, Makerere University, Kampala, Uganda
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