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
From: Caffeine and sodium bicarbonate supplementation alone or together improve karate performance
Conditions | Â | Level 2 | Level 3 | Level 4 | Level 5 | Level 6 | Level 7 | Level 8 | Level 9 |
|---|---|---|---|---|---|---|---|---|---|
Caff+NaHCO3 | RPE | 6.63 ± 0.52 | 7.87 ± 1.81 | 9.25 ± 1.48 | 11.38 ± 2.07 | 12.75 ± 2.05 | 15.37 ± 1.50 | 18.29 ± 0.95 | 19 |
n | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 3 | |
NaHCO3 | RPE | 6.88 ± 0.83 | 8.13 ± 1.12 | 9.50 ± 1.51 | 10.87 ± 1.35 | 14.25 ± 1.75 | 16.75 ± 1.16 | 19.12 ± 0.64 | 19 |
n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 1 | |
Caffeine | RPE | 6.75 ± 0.71 | 8.50 ± 1.19 | 10.12 ± 1.73 | 11.87 ± 2.53 | 14.12 ± 2.53 | 16.88 ± 1.64 | 18.29 ± 0.95 | 19 |
n | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 1 | |
PLA | RPE | 7.0 ± 1.69 | 8.75 ± 2.05 | 10.37 ± 1.92 | 12.25 ± 2.66 | 14.75 ± 2.60 | 17.50 ± 1.93 | 18.80 ± 0.45 | – |
n | 8 | 8 | 8 | 8 | 8 | 8 | 5 | 0 | |
CON | RPE | 7.25 ± 1.28 | 10.75 ± 2.31 | 12.25 ± 1.48 | 15.37 ± 1.06 | 16.87 ± 1.36 | 18.50 ± 0.76 | 19.5 ± 0.58 | – |
n | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 0 |