Abstract
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, : 60.4 ± 8.6 ml min−1 kg−1, : 0.9 ± 0.19 mmol l-1 s-1) performed a ramp-test for determining the and a 15 s sprint-test for measuring the maximal glycolytic rate (). All tests were performed on a Lode-Cycle-Ergometer. and 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
Description
This research investigates the differences between calculated and experimental power outputs in cycling.