The effect of fitness level on cardiac autonomic regulation, IL-6 total antioxidant capacity and muscle damage responses to a single bout of high intensity interval training

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17450%2F18%3AA1901WHN" target="_blank" >RIV/61988987:17450/18:A1901WHN - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jshs.2016.11.001" target="_blank" >http://dx.doi.org/10.1016/j.jshs.2016.11.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jshs.2016.11.001" target="_blank" >10.1016/j.jshs.2016.11.001</a>

Result language

angličtina

Original language name

The effect of fitness level on cardiac autonomic regulation, IL-6 total antioxidant capacity and muscle damage responses to a single bout of high intensity interval training

Original language description

Purpose: The aim of this study was to investigate the influence of the cardiorespiratory fitness level on the response to high-intensity interval training (HIIT) with an individually adjusted running speed of the same relative intensity. The evaluation focused on acute cardiorespiratory response, postexercise cardiac autonomic modulation (heart rate variability (HRV)) and biochemical markers of inflammation, oxidative stress, and muscle damage.Methods: Thirty participants were divided into 3 subgroups: well trained, moderately trained, and untrained. All the participants performed 30 min HIIT composed of 6 x 2 min interval exercise with work-to-relief ratio = 1 and work intensity 100% of individual velocity at maximal oxygen consumption (VO2max). Acute cardiorespiratory variables, postexercise HRV, lactate, interleukin-6 (IL-6), total anti oxidant capacity (TAC), creatine kinase, and myoglobin upto 4 h after HIIT were monitored.Results: The differences in relatively expressed cardiorespiratory variables (heart rate, VO2) during HIIT were at most moderate, with the most pronounced between-group differences in absolute VO2 values. The disruption of the postexercise HRV was the most pronounced in untrained individuals, and this difference persisted 1 h after HIIT. The highest postexercise IL-6 and TAC concentrations and the lowest changes in creatine kinase and myoglobin were revealed in well-trained individuals.Conclusion: The higher fitness level was associated with the less pronounced postexercise cardiac autonomic changes and their faster restoration, even when there were similar acute cardiorespiratory responses. These findings were simultaneously accompanied by the higher postexercise IL 6 and TAC concentrations and less significant changes in muscle damage biochemical markers in well-trained individuals.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30306 - Sport and fitness sciences

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Sport and Health Science

ISSN

2095-2546

e-ISSN

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Volume of the periodical

7

Issue of the periodical within the volume

3

Country of publishing house

CN - CHINA

Number of pages

9

Pages from-to

363-371

UT code for WoS article

000449477100015

EID of the result in the Scopus database

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