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The Mediation Role of Fatness in Associations between Cardiorespiratory Fitness and Blood Pressure after High-Intensity Interval Training in Adolescents

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  • Jarosław Domaradzki

    (Department of Biostructure, Faculty of Physical Education and Sport, Wroclaw University of Health and Sport Sciences, al. I.J. Paderewskiego 35, 51-612 Wroclaw, Poland)

  • Dawid Koźlenia

    (Department of Biostructure, Faculty of Physical Education and Sport, Wroclaw University of Health and Sport Sciences, al. I.J. Paderewskiego 35, 51-612 Wroclaw, Poland)

  • Marek Popowczak

    (Department of Team Sports Games, Faculty of Physical Education, Wroclaw University of Health and Sport Sciences, al. I.J. Paderewskiego 35, 51-612 Wrocław, Poland)

Abstract

Background: Low cardiorespiratory fitness (CRF), elevated blood pressure (BP), and high fatness are cardiovascular disease risk factors. It remains unknown how fatness affects the influence of CRF on BP. Therefore, the aim was to examine whether the associations between baseline CRF and HIIT-postintervention resting BP were mediated through fatness in adolescents. Material and methods: The sample (n = 64) comprised 28 boys 36 girls aged 16 years. The analysed factors were fitness index- reflecting CRF, body fat mass (BFM), fat mass index (FMI), and body mass index (BMI). Bootstrapped mediation procedures were performed. The mediation analysis was conducted concerning the sex moderation effect. Results: The mediation effect of sex was confirmed; therefore, mediations models were designed separately for boys and girls. The results showed a statistically significant inverse relationship between baseline CRF and post-intervention systolic blood pressure (SBP) in both sexes (boys: B = −0.603, p = 0.010; girls: B = −0.394, p = 0.037). The relations between CRF and SBP revealed the mediation effect of the BFM and the FMI only in boys. Conclusions: Fatness mediated associations between CRF and SBP in boys. Therefore, both CRF and fatness are necessary to maintain positive results of the BP revealed in normal SBP ranges after HIIT.

Suggested Citation

  • Jarosław Domaradzki & Dawid Koźlenia & Marek Popowczak, 2022. "The Mediation Role of Fatness in Associations between Cardiorespiratory Fitness and Blood Pressure after High-Intensity Interval Training in Adolescents," IJERPH, MDPI, vol. 19(3), pages 1-14, February.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:3:p:1698-:d:740571
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    References listed on IDEAS

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    1. Rhona Martin-Smith & Ashley Cox & Duncan S. Buchan & Julien S. Baker & Fergal Grace & Nicholas Sculthorpe, 2020. "High Intensity Interval Training (HIIT) Improves Cardiorespiratory Fitness (CRF) in Healthy, Overweight and Obese Adolescents: A Systematic Review and Meta-Analysis of Controlled Studies," IJERPH, MDPI, vol. 17(8), pages 1-20, April.
    2. Jarosław Domaradzki & Ireneusz Cichy & Andrzej Rokita & Marek Popowczak, 2020. "Effects of Tabata Training During Physical Education Classes on Body Composition, Aerobic Capacity, and Anaerobic Performance of Under-, Normal- and Overweight Adolescents," IJERPH, MDPI, vol. 17(3), pages 1-11, January.
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    1. Jarosław Domaradzki & Dawid Koźlenia & Marek Popowczak, 2022. "Prognostic Potential of the Body Composition Indices in Predicting Positive Changes in Resting Blood Pressure after High-Intensity Interval Training in Adolescents," IJERPH, MDPI, vol. 19(22), pages 1-13, November.

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