Effects of High-Intensity Interval Training on Functional Fitness in Older Adults
Source abstract
Abstract
(1) Background: 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; (2) Methods: 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); (3) Results: 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; (4) Conclusions: 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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Cardiovascular and exercise physiology · Stroke Rehabilitation and Recovery · Physical Activity and Health
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Sport Sciences and Physical Education, Polytechnic Institute of Bragança, 5300-253 Bragança, Portugal
Department of Physical Education, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
Department of Sports Sciences, Polytechnic of Guarda, 6300-559 Guarda, Portugal
Department of Sports Sciences, Polytechnic of Cávado and Ave, 4750-810 Barcelos, Portugal
Research Centre for Active Living and Wellbeing (LiveWell), Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal
Department of Sports, ISCE Douro, Penafiel, 4560-708 Penafiel, Portugal
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