Does high-intensity interval training improve cardiorespiratory fitness in adults compared to non-exercise control and moderate-intensity continuous training?
An umbrella review confirms that high-intensity interval training is consistently effective at improving cardiorespiratory fitness in adults compared to moderate-intensity training or no exercise.
Existing evidence from systematic reviews consistently supports the effect of HIIT on enhancing CRF in adults when compared to non-exercise control and MICT. Our findings offer a comprehensive basis that may potentially contribute to informing physical activity guidelines aimed at improving CRF in the general population.
Poon et al. (Wed,) studied this question.
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