Figures & data
Fig. 1 Time to exhaustion during karate-specific aerobic test in each treatment. TTE, time to exhaustion; CAF, caffeine; NaHCO3, sodium bicarbonate; PLA, placebo; CON, control. * Significant difference with PLA and CON (P < 0.05)
Fig. 2 The maximum heart rate (beat/min) at the end of karate-specific aerobic test in each treatment. HR, heart rate; CAF, caffeine; NaHCO3, sodium bicarbonate; PLA, placebo; CON, control
Table 1 Rate of perceived exertion (RPE) in each level of the KSAT and the number of participants at each level. CAF, caffeine; NaHCO3, sodium bicarbonate; PLA, placebo; CON, control
Fig. 3 Blood lactate concentration (mean) before karate-specific aerobic test (KSAT), immediately after KSAT and 3 min after KSAT. CAF, caffeine; NaHCO3, sodium bicarbonate; PLA, placebo; CON, control. * Significant difference of Before KSAT with immediately after KSAT and 3-min after KSAT in the same condition (P < 0.05). † Significant difference between immediately after KSAT in the same condition (P < 0.05). ‡ Significant difference in 3-min after KSAT between NaHCO3 and CAF (P < 0.05)
Availability of data and materials
Data and publication materials are available from the corresponding author on reasonable request.