Evaluating the maximal rate of lactate accumulation and estimated maximal lactate steady state in cycling.

This study examined the reliability of the maximal rate of blood lactate (BLa) accumulation (VLa) and the, thereof, derived calculated power output at maximal La steady state (cP-MLSS). Additionally, cP-MLSS was compared with the second La thresholds determined by experts (LT), being an accurate and often used threshold concept. 13 physically active male participants (length: 182 ± 4 cm; body mass: 76.

Zone 2 Intensity: A Critical Comparison of Individual Variability in Different Submaximal Exercise Intensity Boundaries.

Endurance athletes often utilize low-intensity training, commonly defined as Zone 2 (Z2) within a five-zone intensity model, for its potential to enhance aerobic adaptations and metabolic efficiency. This study aimed at evaluating intra- and interindividual variability of commonly used Z2 intensity markers to assess their precision in reflecting physiological responses during training. Fifty cyclists (30 males and 20 females) performed both an incremental ramp and a step test in a laboratory setting, during which the power output, heart rate, blood lactate, ventilation, and substrate utilization were measured.

Comparison of maximal glycolytic rate from ergometer to on-water sprinting in elite canoe polo players.

Maximal glycolytic rate is not transferable between ergometer and on-water settings in canoe players. Calculated glycolytic contribution is highly correlated to power output on the ergometer. νLa is moderately correlated to on-water performance.

Supplementation of Creatine Monohydrate Improves Sprint Performance but Has no Effect on Glycolytic Contribution: A Nonrandomized, Placebo-Controlled Crossover Trial in Trained Cyclists.

Background: Sprint performance may be crucial for athletes in sprint and endurance sports. In this regard, the maximal glycolytic rate (νLa) is a variable within Mader's model of metabolism that is commonly tested in a 15-s all-out sprint test. The product of lactate accumulation (ΔLa) and lactate distribution space approximated by fat-free mass (FFM) is strongly linked to sprint performance.

Relationship of peak capillary blood lactate accumulation and body composition in determining the mechanical energy equivalent of lactate during sprint cycling.

Aim: A 15-s all-out sprint cycle test (i.e., νLa-test) and the post-exercise change in capillary blood lactate concentration is an emerging diagnostic tool that is used to quantify the maximal glycolytic rate.

Reliability of power output, maximal rate of capillary blood lactate accumulation, and phosphagen contribution time following 15-s sprint cycling in amateur cyclists.

Based on Mader's mathematical model, the rate of capillary blood lactate concentration (νLa) following intense exercise is thought to reflect the maximal glycolytic rate. We aimed to investigate the reliability of important variables of Mader's model (i.e.