Effects of high intensity interval training versus sprint interval training on cardiac autonomic modulation in healthy women
Autor
Oliveira, Jordana
Gentil, Paulo
Naves, João Pedro
Souza Filho, Luiz Fernando
Silva, Lucas
Zamunér, Antonio
de Lira, Claudio Andre
Rebelo, Ana C. S.
Fecha
2022Resumen
Background: 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. Methods: 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). Results: the HIIT group presented better results for the patterns without variation
(0V) variables (p = 0.022); Shannon entropy (p = 0.004) Conditional Entropy (p = 0.025). However,
there was a significant group effect for some variables, Oxygen Volume (VO2) (p = 0.004), Square
root of the mean quadratic differences between the adjacent normal R-R intervals (p = 0.002) and
standard deviation of all normal R-R intervals recorded in a time interval (p = 0.003), demonstrating
an improvement independent of the protocol. Conclusion: 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.
Fuente
International Journal of Environmental Research and Public Health, 19(19), 12863Link de Acceso
Click aquí para ver el documentoIdentificador DOI
doi.org/10.3390/ijerph191912863Colecciones
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