Table 2. Estimated metabolic responses on the three rounds of taekwondo combat simulation in placebo and caffeine conditions.
Round 1 | Round 2 | Round 3 | ||||
---|---|---|---|---|---|---|
CAF | PLA | CAF | PLA | CAF | PLA | |
Oxidative | ||||||
WAER (kJ) | 103.2 ± 11.8 b | 97.1 ± 7.8 b | 117.3 ± 15.2 | 116.8 ± 15.2 | 107.5 ± 20.8 b | 109.8 ± 16.4 b |
Relative (%) | 66 ± 6 b | 63 ± 5 b | 66 ± 6 | 70 ± 3 | 65 ± 6 b | 64 ± 9 b |
ATP-PCr | ||||||
W [PCR] (kJ) | 37.8 ± 10.0 | 43.4 ± 7.4 | 43.1 ± 10.2 | 42.6 ± 8.7 | 55.3 ± 13.7 a b | 54.7 ± 24.2 a b |
Relative (%) | 24 ± 4 | 27 ± 3 | 24 ± 3 | 26 ± 2 | 31 ± 4 a b | 33± 9 a b |
Glycolytic | ||||||
W[La - ] (kJ) | 17.7 ± 9.94 c | 13.3 ± 6.9 | 11.8 ± 7.9 a c | 7.5 ± 5.5 a | 8.1 ± 4.3 a c | 5.8 ± 3.3 a |
Relative (%) | 10 ± 5 | 9 ± 5 | 7 ± 4 a | 4 ± 3 a | 4 ± 2 a | 3 ± 2 a |
WTotal (kJ) | 158.4 ± 22.7 b | 154.2 ± 17.0 b | 175.3 ± 26.3 | 163.9 ± 27.1 | 173.6 ± 28.0 | 167.6 ± 38.3 |
Data are reported as mean and standard deviation. CAF: Caffeine; PLA: Placebo. Waer = estimated oxidative energy, W[La-] = estimated glycolytic energy, WPCR = estimated ATP-PCr energy, WTotal = estimated total metabolic work (WAER + W[La-] + WPCR).
aDifferent than round 1;
bDifferent than round 2;
cDiferent than PLA condition.