Table 6 Blood lactate concentrations (mmol/L) during 1-minute and 2-minute interval speed endurance training.
Measurement point | HV-1 (1-min rest) | HV-2 (2-min rest) | p-value | Effect size (Cohen’s d) |
|---|---|---|---|---|
Set 1 | ||||
Baseline | 1.2 ± 0.3 | 1.1 ± 0.2 | 0.45 | 0.39 |
Rep 1 | 4.8 ± 0.9 | 4.3 ± 0.8 | 0.17 | 0.59 |
Rep 2 | 7.5 ± 1.1 | 6.6 ± 1.0 | 0.08 | 0.85 |
Rep 3 | 10.2 ± 1.3 | 8.7 ± 1.1 | 0.03* | 1.24 |
Set 2 | ||||
Pre-Set 2 | 7.4 ± 1.0 | 6.1 ± 0.9 | 0.06 | 1.37 |
Rep 1 | 11.1 ± 1.2 | 9.5 ± 1.3 | 0.02* | 1.27 |
Rep 2 | 11.8 ± 1.3 | 10.1 ± 1.2 | 0.07 | 1.36 |
Rep 3 | 12.3 ± 1.4 | 10.2 ± 1.5 | 0.01* | 1.45 |
Recovery | ||||
3-min post | 11.8 ± 1.5 | 10.1 ± 1.4 | 0.08 | 1.17 |
6-min post | 11.0 ± 1.4 | 9.5 ± 1.3 | 0.07 | 1.11 |
9-min post | 10.3 ± 1.3 | 8.9 ± 1.2 | 0.09 | 1.13 |
Derived Metrics | ||||
Lactate production rate (mmol/L/min) | 0.60 ± 0.05 | 0.57 ± 0.09 | 0.01* | 0.41 |
Lactate clearance rate (mmol/L/min) | 1.49 ± 0.39 | 1.31 ± 0.21 | 0.24 | 0.57 |
