Analysis of Agreement Between 4 Lactate Threshold Measurements Methods in Professional Soccer Players

Cerda-Kohler, Hugo; Burgos-Jara, Carlos; Ramírez‐Campillo, Rodrigo; Valdés-Cerda, Miguel; Baez, Eduardo; Zapata-Gómez, Daniel; Andrade, David C.; Izquierdo, Mikel

doi:10.1519/jsc.0000000000001368

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…The T lac-log method, like the D max method, allows for T lac to be determined mathematically, and also does not rely on absolute concentrations of lactate. The T lac-log method, however, significantly under-predicted performance in the 5-km time trial; this finding has been observed in other research [ 16 , 18 ]. Although the T lac-log method is useful for fitting the data, there is very little research on whether T lac-log relates to performance [ 19 , 20 ].…”

Section: Discussionsupporting

confidence: 82%

Using lactate threshold to predict 5-km treadmill running performance in veteran athletes

Forsyth

Burt

Ridley

et al. 2017

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Measuring lactate threshold to predict endurance performance is difficult among veteran athletes, due to age-related decreases in net lactate concentration. The objective of this study was to determine whether lactate threshold, as assessed using the maximal deviation method (Dmax), which is not dependent on net values of lactate, could be used as a more valid measure of 5-km treadmill running performance than other methods of determining lactate threshold. Veteran runners (18 male and 18 female, aged 47.3±6.7 years) performed an incremental exercise test to establish mean treadmill velocity at lactate threshold using Dmax, a log-log method, a visual method, and a 4-mmol·L-1 method, and, on a separate occasion, completed a 5-km time trial. Mean treadmill velocity at Dmax was 12.2±1.8 km·h-1, not being significantly different to mean treadmill velocity (12.1±1.8 km·h-1) attained during the 5-km time trial (p>0.05); velocities were also significantly correlated (r=0.92, p<0.001), and limits of agreement narrow (-1.61 to 1.35 km·h-1). Correlations were weaker and limits of agreement wider for the other methods of lactate threshold determination. Using a two-way, mixed-methods ANOVA, there was no significant effect of sex when using the different methods of determining Tlac (F4,136=3.70, p=0.15). Mean treadmill velocity, when using Dmax for determining lactate threshold, can be used to predict 5-km running performance among male and female veteran athletes.

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Section: Discussionsupporting

confidence: 82%

Using lactate threshold to predict 5-km treadmill running performance in veteran athletes

Forsyth

Burt

Ridley

et al. 2017

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“…To quantify the agreement of the outcome measures between TM and RT, a Bland-Altman analysis was conducted. Priori defined 95% limits of agreement (LoA) of ±1km/h for IAT speed were considered to be of relevance [ 22 , 23 ]. The strength of the relationship between the primary outcome measures of the two running conditions was analyzed with the Pearson product-moment correlation.…”

Section: Methodsmentioning

confidence: 99%

Accuracy of training recommendations based on a treadmill multistage incremental exercise test

et al. 2018

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Competitive runners will occasionally undergo exercise in a laboratory setting to obtain predictive and prescriptive information regarding their performance. The present research aimed to assess whether the physiological demands of lab-based treadmill running (TM) can simulate that of over-ground (OG) running using a commonly used protocol. Fifteen healthy volunteers with a weekly mileage of ≥ 20 km over the past 6 months and treadmill experience participated in this cross-sectional study. Two stepwise incremental tests until volitional exhaustion was performed in a fixed order within one week in an Outpatient Clinic research laboratory and outdoor athletic track. Running velocity (IATspeed), heart rate (IATHR) and lactate concentration at the individual anaerobic threshold (IATbLa) were primary endpoints. Additionally, distance covered (DIST), maximal heart rate (HRmax), maximal blood lactate concentration (bLamax) and rate of perceived exertion (RPE) at IATspeed were analyzed. IATspeed, DIST and HRmax were not statistically significantly different between conditions, whereas bLamax and RPE at IATspeed showed statistical significance (p < 0.05). Apart from RPE at IATspeed, IATspeed, DIST, HRmax and bLamax strongly correlate between conditions (r = 0.815–0.988). High reliability between conditions provides strong evidence to suggest that running on a treadmill are physiologically comparable to that of OG and that training recommendations and be made with assurance.

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“…Incremental exercise tests are capable of providing input into aerobic endurance performance parameters (Joyner and Coyle, 2008; O’Brien et al, 2008; Faude et al, 2009; Midgley et al, 2009). In addition, heart rate and lactate thresholds are commonly used as a sensitive indicator of changes in training status in soccer players (Ziogas et al, 2011; de Lucas et al, 2014; Cerda-Kohler et al, 2016; Pallarés et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Differences in Player Position Running Velocity at Lactate Thresholds Among Male Professional German Soccer Players

et al. 2019

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This study investigated the differences in running velocities at specific lactate thresholds among male German soccer players. One hundred fifty-two professional (3rd league: n = 78; 4th league: n = 74) male soccer players (mean ± SD; age: 24.7 ± 4.37 years, body mass: 80.8 ± 7.33 kg, body height: 1.83 ± 0.06 m) volunteered for the investigation. Players were categorized as goalkeepers, central defenders, central midfielders, wings and forward. Players completed a treadmill test, at incremental speeds, to determine running velocity at different blood lactate concentrations (v2 = 2 mmol/l; v4 = 4 mmol/l; and v6 = 6 mmol/l). In addition, the largest difference between positions for running velocity was found at the lactate threshold v2 ( p = 0.005). The running data revealed that only goalkeepers had significantly lower velocities at the lactate thresholds compared to outfield players. The central midfielders showed the highest average performance level at the lactate thresholds (v2: 12.5 ± 1.20 km/h; v4: 15.2 ± 1.14 km/h; and v6: 16.6 ± 1.14 km/h). In conclusion, this study provides soccer and position-specific reference data for the running performance of male professional German soccer players to evaluate the endurance performance in a standardized way. In this context, future research should extend the database for the first and second leagues. Further research assessing running performance during competition matches over the entire season is required to validate the endurance test performance data.

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Analysis of Agreement Between 4 Lactate Threshold Measurements Methods in Professional Soccer Players

Cited by 8 publications

References 36 publications

Using lactate threshold to predict 5-km treadmill running performance in veteran athletes

Using lactate threshold to predict 5-km treadmill running performance in veteran athletes

Accuracy of training recommendations based on a treadmill multistage incremental exercise test

Differences in Player Position Running Velocity at Lactate Thresholds Among Male Professional German Soccer Players

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