The use and effects of whole‐body exercises on swallowing function: A scoping review

Abstract

Background: Swallowing function can become impaired due to primary medical conditions or age-related presbyphagia, resulting in swallowing disorders, known as dysphagia. Specific manoeuvres that target different musculature have been innovated and researched, but whole-body exercises (WBE) that target multiple large groups of body systems and muscles have been rarely considered in dysphagia management, despite the causes of dysphagia being often systemic. Aims: To identify intervention studies that have used or incorporated WBE to target swallowing function in humans, and report on their findings. Methods & Procedures: A scoping review was conducted given the paucity and novelty of this topic in research and practice. Key search terms were used to search five major databases on for all human studies published before 28 November 2022. Studies that were not interventional or used animal models were excluded. All swallowing and oromotor-related outcomes were extracted from the studies. Two researchers independently reviewed all search results following the PRISMA-ScR guideline before meeting to resolve any disagreements. Main Contribution: Final analysis was conducted on 11 papers that described 10 studies, with 10 papers (9 studies) reporting positive findings for swallowing or oromotor function-related outcomes. Studies ranged from randomised controlled trials to case studies in design. The study design and populations were heterogeneous, with outcome measures for swallowing and oromotor function ranging from subjective questionnaires to instrumental assessments.Conclusions & Implications: Dysphagia rehabilitation that incorporates WBE as part of a comprehensive programme appears to be more beneficial than either WBE or swallowing-related interventions alone. This review is an initial attempt to systematically examine the evidence on this topic. There is a need for future research to study how WBE can be used, either alone or combined with traditional swallowing exercises, to influence swallowing function in different healthy and clinical populations.