Effects of High Intensity Interval Training versus Sprint Interval Training on Cardiac Autonomic Modulation in Healthy Women

For the prevention of cardiovascular diseases, the practice of physical exercises is an effective strategy in improving or maintaining cardiorespiratory health; however, a lack of time is a barrier to access and interval training appears as possible facilitator. This study aims to compare the effect...

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Bibliographic Details
Published in:International journal of environmental research and public health 2022-10, Vol.19 (19), p.12863
Main Authors: Oliveira, Jordana, Gentil, Paulo, Naves, João Pedro, Souza Filho, Luiz Fernando, Silva, Lucas, Zamunér, Antonio Roberto, de Lira, Claudio Andre, Rebelo, Ana
Format: Article
Language:English
Subjects:
Adult
Autonomic Nervous System
Body mass index
Cardiovascular diseases
Disease
Entropy (Information theory)
Exercise
Female
Heart
Heart rate
High-Intensity Interval Training - methods
Humans
Interval training
Metabolism
Oxygen
Oxygen Consumption
Physical fitness
Womens health
Young Adult
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Summary:For the prevention of cardiovascular diseases, the practice of physical exercises is an effective strategy in improving or maintaining cardiorespiratory health; however, a lack of time is a barrier to access and interval training appears as possible facilitator. This study aims to compare the effects of two interval training protocols on cardiac autonomic modulation in healthy women. we conducted a randomized clinical trial with 43 women with a mean age of 29.96 ± 6.25 years, allocated into two groups; high-intensity interval training (HIIT) consisting of four four-minute high-intensity sprints interspersed with three minutes of active recovery and the Sprint interval training (SIT) with four 30-s sprints all-out, interspersed with four minutes of recovery (active or passive). the HIIT group presented better results for the patterns without variation (0V) variables ( = 0.022); Shannon entropy ( = 0.004) Conditional Entropy ( = 0.025). However, there was a significant group effect for some variables, Oxygen Volume (VO2) ( = 0.004), Square root of the mean quadratic differences between the adjacent normal R-R intervals ( = 0.002) and standard deviation of all normal R-R intervals recorded in a time interval ( = 0.003), demonstrating an improvement independent of the protocol. we conclude that eight weeks of interval training were able to produce positive effects on cardiac autonomic modulation in healthy women, with better results for HIIT in this population.
ISSN:1660-4601
1661-7827
1660-4601
DOI:10.3390/ijerph191912863