Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists

Vobejda C, Wortmann T, Zimmermann E (2023)
German Journal of Exercise and Sport Research 53: 171-179.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Alternativer Titel
Constant power threshold – Vorhersage des maximalen Laktat-Steady-State bei Freizeitradsportlern
Abstract / Bemerkung
Introduction Prolonged time trials proved capable of precisely estimating anaerobic threshold. However, time trial studies in recreational cyclists are missing. The aim of the present study was to evaluate accuracy and viability of constant power threshold, which is the highest power output constantly maintainable over time, for estimating maximal lactate steady state in recreational athletes. Methods A total of 25 recreational athletes participated in the study of whom 22 (11 female, 11 male) conducted all constant load time trials required for determining constant power threshold 30 min and 45 min, which is the highest power output constantly maintainable over 30 min and 45 min, respectively. Maximal lactate steady state was assessed subsequently from blood samples taken every 5 min during the time trials. Results Constant power threshold over 45 min (175.5 ± 49.6 W) almost matched power output at maximal lactate steady state (176.4 ± 50.5 W), whereas constant power threshold over 30 min (181.4 ± 51.4 W) was marginally higher (P = 0.007, d = 0.74). Interrelations between maximal lactate steady state and constant power threshold 30 min and constant power threshold 45 min were very close (R2 = 0.99, SEE = 8.9 W, Percentage SEE (%SEE) = 5.1%, P < 0.001 and R2 = 0.99, SEE = 10.0 W, %SEE = 5.7%, P < 0.001, respectively). Conclusions Determination of constant power threshold is a straining but viable and precise alternative for recreational cyclists to estimate power output at maximal lactate steady state and thus maximal sustainable oxidative metabolic rate
Erscheinungsjahr
2023
Zeitschriftentitel
German Journal of Exercise and Sport Research
Band
53
Seite(n)
171-179
eISSN
2509-3150
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld im Rahmen des DEAL-Vertrags gefördert.
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https://pub.uni-bielefeld.de/record/2961532

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Vobejda C, Wortmann T, Zimmermann E. Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists. German Journal of Exercise and Sport Research. 2023;53:171-179.
Vobejda, C., Wortmann, T., & Zimmermann, E. (2023). Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists. German Journal of Exercise and Sport Research, 53, 171-179. https://doi.org/10.1007/s12662-022-00801-6
Vobejda, Christian, Wortmann, Tim, and Zimmermann, Elke. 2023. “Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists”. German Journal of Exercise and Sport Research 53: 171-179.
Vobejda, C., Wortmann, T., and Zimmermann, E. (2023). Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists. German Journal of Exercise and Sport Research 53, 171-179.
Vobejda, C., Wortmann, T., & Zimmermann, E., 2023. Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists. German Journal of Exercise and Sport Research, 53, p 171-179.
C. Vobejda, T. Wortmann, and E. Zimmermann, “Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists”, German Journal of Exercise and Sport Research, vol. 53, 2023, pp. 171-179.
Vobejda, C., Wortmann, T., Zimmermann, E.: Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists. German Journal of Exercise and Sport Research. 53, 171-179 (2023).
Vobejda, Christian, Wortmann, Tim, and Zimmermann, Elke. “Constant Power Threshold – Predicting maximal lactate steady state in recreational cyclists”. German Journal of Exercise and Sport Research 53 (2023): 171-179.
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