Lactate Equivalent for Maximal Lactate Steady State Determination in Soccer

Garcia‐Tabar, Ibai; Rampinini, Ermanno; Gorostiaga, Esteban M.

doi:10.1080/02701367.2019.1643446

Cited by 11 publications

(14 citation statements)

References 40 publications

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“…Additionally, the percentages of HRmax at AnT methods derived from the T-Car test (see ▶ Table 1) are consistent with other studies, as well as 91.4 % [21] and 91.6 % [5] at HRDPDmax, and 91.8 % at HRDP [5]. Those values were greater than ~90 % of HRmax observed at [La -] threshold methods [5,15].…”

Section: Discussionsupporting

confidence: 89%

“…The MLSS is not a practical and accessible measure, especially in team sports such as soccer, because it involves several bouts at different speeds on different days, and this modality involves a high number of athletes [9,10]. Previously, the prediction of MLSS was conducted in soccer players by using invasive procedures or multiple trials procedures [12][13][14][15][16]. Additionally, the determination of MLSS in the current study was derived from a very specific pattern of exercise, similar in nature to soccer.…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, the determination of MLSS in the current study was derived from a very specific pattern of exercise, similar in nature to soccer. Previously, Barbieri et al [13] used a circuit with ball driving in futsal; Loures et al [14] used the Hoff Circuit designed for soccer, and in other studies, the MLSS and estimates were determined using continuous running on a treadmill or outdoor track [12,15,16]. It is important to note that in the present study, as the MLSS was determined using the intermittent model, the exercise intensity at MLSS is higher than in the MLSS determined using the continuous model [27,28].…”

Section: Discussionmentioning

confidence: 99%

“…the HR at intermittent MLSS was (mean ± SD) 92.0 ± 2.4 % of HRmax. Another study using continuous exercise for MLSS determination (pauses only for [La -] sampling) reported the HR as the average value for the last 20 min of exercise, found values of 88.6 ± 3.0 % [16], and 90.0 ± 2.0 % [15] of HRmax at MLSS. A likely reason that the HR at MLSS was higher than continuous MLSS can be attributed to the pauses that improve [La -] removal, and as a result the MLSS was reached at higher intensity.…”

Section: Discussionmentioning

confidence: 99%

“…In short, the continuous MLSS determination is based on several 30-min trials performed on different days, including blood [La − ] samples [10], which makes it more impractical and not widely accessible. In an attempt to make it easier to determine MLSS with 1-day tests and/or without any invasive procedures, studies of MLSS prediction in soccer players have focused on critical speed [12], [La − ] minimum test [13], [La − ]-derived thresholds [12,14,15], and use of field incremental test parameters [16]. However, those studies determined the MLSS during continuous exercise models (pauses only for [La -] sample) [12][13][14][15][16], which is not in accordance with the specificity regarding the intermittent character of soccer.…”

Section: Introductionmentioning

confidence: 99%

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Predicting Maximal Lactate Steady State from Carminatti’s Shuttle Run Test in Soccer Players

Carminatti¹,

Batista²,

Silva

et al. 2020

Int J Sports Med

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The objective of the present study was to determine the validity of Carminatti’s shuttle run incremental test–T-Car derived parameters in estimating the maximal lactate steady state determined in shuttle run format. Eighteen soccer players performed a T-Car test, and several trials to determine the maximal lactate steady state. From T-Car were derived the heart rate deflection point, peak speed, maximal heart rate and parameters resulting from percentage of peak measures. The validity was accessed by Bland-Altman plots, linear regressions, and two one-sided tests of equivalence analysis. The results showed the speed at 80.4% of T-Car peak speed, the heart rate deflection point and the 91.4% of maximal heart rate were equivalent to maximal lactate steady state (Mean difference; ±90% compatibility interval; −0.8; ±1.5%, −0.4; ±1.1%, and 0.0; ±2.7%, respectively). Additionally, peak speed during the T-Car test was a stronger predictor of maximal lactate steady state (MLSS [km/h]=2.57+0.65 × sPeak; r=0.82 [90% CI; 0.62–0.92], standard error of the estimate=3.6%; 90% CI ×/÷1.4). Therefore, soccer players can use the T-Car derived parameters as a noninvasive and practical alternative to estimate the specific maximal lactate steady state for soccer.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Predicting Maximal Lactate Steady State from Carminatti’s Shuttle Run Test in Soccer Players

Carminatti¹,

Batista²,

Silva

et al. 2020

Int J Sports Med

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Aerobic fitness and game performance indicators in professional football players; playing position specifics and associations

Modrić

Veršić

Sekulić

2020

Heliyon

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The aim of this study was to identify associations between aerobic fitness (AF) and game performance indicator (GPI) in elite football. Participants were professional football players (males, n ¼ 16; age: 23.76 AE 2.64; body height: 181.62 AE 7.09 cm; body mass: 77.01 AE 6.34 kg). AF testing was conducted by direct measurement and included VO2max, running speed at aerobic threshold (AeT), and running speed at anaerobic threshold (AT). The GPI were collected by the position-specific performance statistics index (InStat index). The players were observed over one competitive half-season, resulting in 82 game performances, grouped according to the positions in game: defenders (n ¼ 39), midfielders (n ¼ 32) and forwards (n ¼ 11). VO2max was not found to be a good discriminator of AF among different playing positions. AeT (F-test ¼ 26.36. p ¼ 0.01) and AT (F-test ¼ 7.25, p ¼ 0.01) were highest among midfielders, and lowest among forwards. No correlations were found between AF and GPI. This study confirmed that AeT and AT are better indicators of AF than VO2max in football players at different playing positions. The lack of associations between AF and GPI was discussed with regard to calculation of InStat as a GPI.

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Football de haut-niveau : analyses physique et physiologique – blessures et prévention

Zouhal¹,

Coppalle²,

Ravé³

et al. 2021

Science & Sports

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Lactate Equivalent for Maximal Lactate Steady State Determination in Soccer

Cited by 11 publications

References 40 publications

Predicting Maximal Lactate Steady State from Carminatti’s Shuttle Run Test in Soccer Players

Predicting Maximal Lactate Steady State from Carminatti’s Shuttle Run Test in Soccer Players

Aerobic fitness and game performance indicators in professional football players; playing position specifics and associations

Football de haut-niveau : analyses physique et physiologique – blessures et prévention

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