Máximo estado estável de lactato estimado por diferentes métodos de determinação

Souza, Kristopher Mendes de; Grossl, Talita; Babel, Rubens José; Lucas, Ricardo Dantas de; Costa, Vitor Pereira; Guglielmo, Luiz Guilherme Antonacci

doi:10.5007/1980-0037.2012v14n3p264

Cited by 5 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another fact may be just the recruitment of male runners and the need to perform a MIRT. In addition, MLSS was not used as a gold standard, but LT 2 had a good approximation of MLSS in runners [30]. Therefore, it is suggested to carry out studies with different characteristics of samples, such as gender, age, and levels of training.…”

Section: Discussionmentioning

confidence: 99%

“…AnT) was determined as the running speed at 1.5 mmol·L −1 above LT 1 (Figure 1) [29]. The LT 1 and LT 2 derived from the Dickhuth et al's [29] methods were used as criterium measures, because LT 1 has a high correlation with MLSS [7], and LT 2 (+1.5 mmol·L −1 ) was used because it showed a high concordance with MLSS in runners during the MIRT with stages of 3 min [30].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Applicability of Dmax Method on Heart Rate Variability to Estimate the Lactate Thresholds in Male Runners

Nascimento

Antunes

Salvador

et al. 2019

Journal of Sports Medicine

Self Cite

View full text Add to dashboard Cite

Introduction. The purpose of this study was to evaluate the application of the Dmax method on heart rate variability (HRV) to estimate the lactate thresholds (LT), during a maximal incremental running test (MIRT). Methods. Nineteen male runners performed two MIRTs, with the initial speed at 8 km·h−1 and increments of 1 km·h−1 every 3 minutes, until exhaustion. Measures of HRV and blood lactate concentrations were obtained, and lactate (LT1 and LT2) and HRV (HRVTDMAX1 and HRVTDMAX2) thresholds were identified. ANOVA with Scheffe’s post hoc test, effect sizes (d), the bias ± 95% limits of agreement (LoA), standard error of the estimate (SEE), Pearson’s (r), and intraclass correlation coefficient (ICC) were calculated to assess validity. Results. No significant differences were observed between HRVTDMAX1 and LT1 when expressed for speed (12.1 ± 1.4 km·h−1 and 11.2 ± 2.1 km·h−1; p=0.55; d = 0.45; r = 0.46; bias ± LoA = 0.8 ± 3.7 km·h−1; SEE = 1.2 km·h−1 (95% CI, 0.9–1.9)). Significant differences were observed between HRVTDMAX2 and LT2 when expressed for speed (12.0 ± 1.2 km·h−1 and 14.1 ± 2.5 km·h−1; p=0.00; d = 1.21; r = 0.48; bias ± LoA = −1.0 ± 1.8 km·h−1; SEE = 1.1 km·h−1 (95% CI, 0.8–1.6)), respectively. Reproducibility values were found for the LT1 (ICC = 0.90; bias ± LoA = −0.7 ± 2.0 km·h−1), LT2 (ICC = 0.97; bias ± LoA = −0.1 ± 1.1 km·h−1), HRVTDMAX1 (ICC = 0.48; bias ± LoA = −0.2 ± 3.4 km·h−1), and HRVTDMAX2 (ICC = 0.30; bias ± LoA = 0.3 ± 3.5 km·h−1). Conclusions. The Dmax method applied over a HRV dataset allowed the identification of LT1 that is close to aerobic threshold, during a MIRT.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Applicability of Dmax Method on Heart Rate Variability to Estimate the Lactate Thresholds in Male Runners

Nascimento

Antunes

Salvador

et al. 2019

Journal of Sports Medicine

Self Cite

View full text Add to dashboard Cite

show abstract

“…Ventilatory thresholds (VT) [35] and respiratory compensation points (RCP) [36] are normally calculated from oxygen uptake data. There is also a broad range of lactate thresholds (LT), which respond to different concepts and can be obtained through several different testing protocols: individual anaerobic threshold (IAT) [37], maximal lactate steady state (MLSS) [38], fixed blood lactate concentrations of 2 and 4 mmol/L, initial rises of 1 mmol/L, Dmax [39], and modified Dmax [40] methods.…”

Section: Relationship Between Functional Threshold Power and Laboratomentioning

confidence: 99%

Power Assessment in Road Cycling: A Narrative Review

et al. 2020

View full text Add to dashboard Cite

Nowadays, the evaluation of physiological characteristics and training load quantification in road cycling is frequently performed through power meter data analyses, but the scientific evidence behind this tool is scarce and often contradictory. The aim of this paper is to review the literature related to power profiling, functional threshold testing, and performance assessment based on power meter data. A literature search was conducted following preferred reporting items for review statement (PRISMA) on the topic of {“cyclist” OR “cycling” AND “functional threshold” OR “power meter”}. The reviewed evidence provided important insights regarding power meter-based training: (a) functional threshold testing is closely related to laboratory markers of steady state; (b) the 20-min protocol represents the most researched option for functional threshold testing, although shorter durations may be used if verified on an individual basis; (c) power profiling obtained through the recovery of recorded power outputs allows the categorization and assessment of the cyclist’s fitness level; and (d) power meters represent an alternative to laboratory tests for the assessment of the relationship between power output and cadence. This review elucidates the increasing amount of studies related to power profiling, functional threshold testing, and performance assessment based on power meter data, highlighting the opportunity for the expanding knowledge that power meters have brought in the road cycling field.

show abstract

A novel treadmill protocol for uphill running assessment: the incline incremental running test (IIRT)

Lucas

Mattos

Tremel

et al. 2021

Research in Sports Medicine

View full text Add to dashboard Cite

Máximo estado estável de lactato estimado por diferentes métodos de determinação

Abstract: Maximal lactate steady state estimated by different methods of anaerobic threshold Máximo estado estável de lactato estimado por diferentes métodos de determinação do limiar anaeróbio

Cited by 5 publications

References 25 publications

Applicability of Dmax Method on Heart Rate Variability to Estimate the Lactate Thresholds in Male Runners

Applicability of Dmax Method on Heart Rate Variability to Estimate the Lactate Thresholds in Male Runners

Power Assessment in Road Cycling: A Narrative Review

A novel treadmill protocol for uphill running assessment: the incline incremental running test (IIRT)

Contact Info

Product

Resources

About