- AutorIn
- Thomas Hauser
- Jennifer Adam
- Henry Schulz
- Titel
- Comparison of calculated and experimental power in maximal lactate-steady state during cycling
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa-148263
- Quellenangabe
- Theoretical Biology and Medical Modelling 2014, 11:25
- Abstract (EN)
- Background: The purpose of this study was the comparison of the calculated (MLSSC) and experimental power (MLSSE) in maximal lactate steady-state (MLSS) during cycling. Methods: 13 male subjects (24.2 ± 4.76 years, 72.9 ± 6.9 kg, 178.5 ± 5.9 cm, V_O2max: 60.4 ± 8.6 ml min−1 kg−1, V_ Lamax: 0.9 ± 0.19 mmol l-1 s-1) performed a ramp-test for determining the V_O2max and a 15 s sprint-test for measuring the maximal glycolytic rate (V_ Lamax). All tests were performed on a Lode-Cycle-Ergometer. V_O2max and V_ Lamax were used to calculate MLSSC. For the determination of MLSSE several 30 min constant load tests were performed. MLSSE was defined as the highest workload that can be maintained without an increase of blood-lactate-concentration (BLC) of more than 0.05 mmol l−1 min−1 during the last 20 min. Power in following constant-load test was set higher or lower depending on BLC. Results: MLSSE and MLSSC were measured respectively at 217 ± 51 W and 229 ± 47 W, while mean difference was −12 ± 20 W. Orthogonal regression was calculated with r = 0.92 (p < 0.001). Conclusions: The difference of 12 W can be explained by the biological variability of V_O2max and V_ Lamax. The knowledge of both parameters, as well as their individual influence on MLSS, could be important for establishing training recommendations, which could lead to either an improvement in V_O2max or V_ Lamax by performing high intensity or low intensity exercise training, respectively. Furthermore the validity of V_ Lamax -test should be focused in further studies.
- Andere Ausgabe
- DOI: 10.1186/1742-4682-11-25
- Link zur Originalpublikation in der Zeitschrift Theoretical Biology and Medical Modelling
Link: http://www.tbiomed.com/content/11/1/25 - Freie Schlagwörter (DE)
- Lactate, Technische Universität Chemnitz, Publikationsfonds
- Freie Schlagwörter (EN)
- Maximal lactate-steady-state, Calculation, Lactate-production rate, Elimination of lactate, Technische Universität Chemnitz, Publication funds
- Klassifikation (DDC)
- 600
- 610
- 612
- Normschlagwörter (GND)
- Lactate
- Herausgeber (Institution)
- Technische Universität Chemnitz
- Verlag
- BioMed Central
- Förder- / Projektangaben
- URN Qucosa
- urn:nbn:de:bsz:ch1-qucosa-148263
- Veröffentlichungsdatum Qucosa
- 11.07.2014
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch