Why the study?
HIIT is emerging as safe and effective against chronic diseases, prompting a systematic review of its effects in an aging population.
Does high-intensity interval training improve cardiorespiratory fitness measures in older adults compared to moderate-intensity continuous training?
Does high-intensity interval training improve cardiorespiratory fitness measures in older adults compared to moderate-intensity continuous training?
High-intensity interval training is a safe and effective exercise regimen that provides comparable or superior improvements in cardiorespiratory fitness compared to moderate-intensity continuous training in older adults.
HIIT may be prioritized for cardiorespiratory fitness gains in older adults; reinforces Level 1 evidence of comparable or superior effects versus MICT.
High-intensity interval training (HIIT) is emerging as a safe and effective means to combat chronic diseases. The objective of this work was to perform a systematic review of the effect of HIIT interventions in an aging population. Three electronic databases were searched for randomized trials comparing the effect of HIIT and moderate-intensity continuous training in older adults. After a thorough screening process, 15 articles were identified as meeting the inclusion criteria. All studies expressed a comparable or superior effect of HIIT in cardiorespiratory fitness measures. No studies reported a lessened effect of HIIT in comparison with moderate-intensity continuous training. This systematic review demonstrates that HIIT is a useful exercise regimen, which can be used in older adults to increase cardiorespiratory fitness. More research is needed to determine the effects of HIIT in an aging, predominately female population.
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Keating et al. (2020) studied this question.
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