Peak oxygen uptake, ventilatory threshold, and arterial stiffness in adolescents
Deutscher übersetzter Titel: | Maximale Sauerstoffaufnahme, Beatmungsschwelle und arterielle Steifheit bei Jugendlichen |
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Autor: | Haapala, Eero A.; Laukkanen, Jari A.; Takken, Tim; Kujala, Urho M.; Finni, Taija |
Erschienen in: | European journal of applied physiology |
Veröffentlicht: | 118 (2018), 11, S. 2367–2376, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1439-6319, 0301-5548 |
DOI: | 10.1007/s00421-018-3963-3 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201903002279 |
Quelle: | BISp |
Abstract des Autors
Purpose: To investigate the associations of peak oxygen uptake (V˙O2peak) and V˙O2 at ventilatory threshold (V˙O2 at VT) with arterial stiffness in adolescents.
Methods: The participants were 55 adolescents (36 girls, 19 boys) aged 16–19 years. Aortic pulse wave velocity (PWVao) and augmentation index (AIx%) were measured by non-invasive oscillometric device from right brachial artery level. V˙O2peak was directly measured during a maximal ramp test on a cycle ergometer. V˙O2 at VT was determined using the equivalents for ventilation (V˙E/V˙CO2 and V˙E/V˙O2). V˙O2peak and V˙O2 at VT were normalised for body mass (BM) and lean mass (LM). Data were analysed using linear regression analyses and analysis of covariance adjusted for age and sex.
Results: V˙O2peak normalised for BM (β = − 0.445, 95% CI − 0.783 to − 0.107) and V˙O2peak normalised for LM (β = − 0.386, 95% CI − 0.667 to − 0.106) were inversely associated with PWVao. A higher V˙O2 at VT normalised for BM (β = − 0.366, 95% CI − 0.646 to − 0.087) and LM (β = − 0.321, 95% CI − 0.578 to − 0.064) was associated with lower PWVao. Adolescents in the lowest third of V˙O2peak by LM (6.6 vs. 6.1 m/s, Cohen’s d = 0.33) and V˙O2 at VT by LM (6.6 vs. 6.0 m/s, Cohen’s d = 0.33) had a higher PWVao than those in the highest third of V˙O2peak or V˙O2 at VT by LM.
Conclusions: Higher V˙O2peak and V˙O2 at VT by BM and LM were related to lower arterial stiffness in adolescents. Normalising V˙O2peak and V˙O2 at VT for LM would provide the most appropriate measure of cardiorespiratory fitness in relation to arterial stiffness.