High-intensity interval or circuit-based strength training effects on physical and cognitive functioning for community-dwelling older adults: A systematic review protocol.
Morgan, A.; Noguchi, K.; Tang, A.; Heisz, J.; Thabane, L.; Richardson, J.
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BackgroundHigh-intensity interval or circuit-based strength training utilizes brief intense periods of strengthening exercises interspersed with rest/light activity or performed in a continuous circuit. The physical and cognitive effects of this time-efficient approach in community-dwelling older adults have not been systematically reviewed. ObjectivesTo determine the effects of high-intensity interval or circuit-based strength training interventions on physical and cognitive functioning for community-dwelling older adults, and the associated adherence, retention, and adverse event rates. MethodsSix databases will be searched from inception to November 2021; MEDLINE, EMBASE, CINAHL, AgeLine, SPORTDiscus, and Web of Science. To assess physical and/or cognitive functioning effects, randomized and quasi-randomized controlled trials (RCTs and Q-RCTs) of high-intensity interval or circuit-based strengthening interventions in community-dwelling older adults, utilizing any comparator, will be included. The above criteria will be extended to include non-randomized study designs to assess adherence, retention, and adverse events. All screening, data extraction and risk of bias will be assessed by two independent reviewers. Risk of bias will be assessed utilizing the Cochrane RoB 2 tool for randomized and ROBINS-I for non-randomized studies. Qualitative synthesis will be used to present information on adherence, retention, and adverse event rates. Qualitative and/or quantitative synthesis will be used to present physical and cognitive functioning effects depending on which method is deemed appropriate for the various outcomes. ConclusionThis systematic review will be the first to summarize the physical and/or cognitive effects, adherence, retention, and adverse events reported in high-intensity interval and circuit-based strengthening interventions for community-dwelling older adults. Systematic review registration numberCRD42021284010
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