Reproducibility of incremental maximal cycle ergometer tests in healthy recreationally active subjects
| Autor: | Kasper Dideriksen, Ulla Ramer Mikkelsen |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Time Factors Adolescent Anaerobic Threshold Physiology Health Status Physical fitness 030204 cardiovascular system & hematology Young Adult 03 medical and health sciences Oxygen Consumption 0302 clinical medicine Predictive Value of Tests Physiology (medical) Internal medicine Humans Medicine Exercise Reproducibility Watt business.industry Reproducibility of Results VO2 max Workload 030229 sport sciences General Medicine Middle Aged Bicycling Physical Fitness Predictive value of tests Exercise Test Cardiology Female Pulmonary Ventilation business Ventilatory threshold Anaerobic exercise Sports |
| Zdroj: | Clinical Physiology and Functional Imaging. 37:173-182 |
| ISSN: | 1475-0961 |
| Popis: | Summary Purpose Testing of the ventilatory threshold (VT) and maximal oxygen uptake (VO2peak) is relevant for the evaluation of a range of training studies, clinical trials and cross-sectional studies. Due to a possible learning effect, a familiarization test is often performed to increase test reproducibility. However, limited research has investigated this learning effect and reproducibility of maximal exercise testing. The most appropriate ways to determine VT and VO2peak are not clear, and this study evaluated two approaches (V-slope and a combined method) for the determination of VT and five time-averaging intervals (60, 30, 15, 10 and 5 s) for the determination of VO2peak to compare test results and reproducibility. Methods Thirteen recreational triathletes completed three identical incremental maximal cycle ergometer tests. The initial workload was 75 and 100 watt (W) for women and men, respectively, and the workload was increased by 4 W/10 s thereafter. No familiarization test was performed. Results VO2peak increased significantly as the time-averaging interval became shorter (e.g. 5-s interval 48·7 versus 60-s interval 44·8 ml O2 kg−1 min−1; overall P |
| Databáze: | OpenAIRE |
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