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Publication
Effects of High-Intensity Interval Training on Functional Fitness in Older Adults
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Advisor(s)
Abstract(s)
The global increase in life expectancy has generated growing interest in strategies that support functional independence and quality of life among older adults. Functional fitness—including strength, mobility, flexibility, and aerobic endurance—is essential for preserving autonomy during aging. In this context, physical exercise, particularly High-Intensity Interval Training (HIIT), has gained attention for its time efficiency and physiological benefits. This randomized controlled trial aimed to evaluate the effects of a group-based HIIT program on functional fitness in older adults. Functional outcomes were assessed before, during, and after a 65-week intervention using standardized field tests, including measures of upper and lower body strength, flexibility, aerobic endurance, and agility. This study was prospectively registered at ClinicalTrials.gov (NCT07170579). Significant improvements were observed in the HIIT group across multiple domains of functional fitness compared to the control group, notably in upper body strength, lower limb flexibility, cardiorespiratory endurance, and mobility. These results suggest that HIIT is an effective and adaptable strategy for improving functional fitness in older adults, with the potential to enhance performance in daily activities and support healthy aging in community settings.
Description
Keywords
High-intensity interval training Functional fitness Adults Aging Physical exercise Autonomy Activities of daily living
Pedagogical Context
Citation
Schneider, André; Leite, Luciano Bernardes; Santos, Fernando; Teixeira, José Eduardo; Forte, Pedro; Barbosa, Tiago M.; Monteiro, António M. (2025). Effects of High-Intensity Interval Training on Functional Fitness in Older Adults. Applied Sciences-Basel. ISSN 2076-3417. 15:19, p. 1-15
Publisher
MDPI