. 2024 Mar 1;23(1):228–235. doi: 10.52082/jssm.2024.228

Table 2.

Descriptive data of the RPE and TQR subjective scales (mean ± standard deviation) in the beetroot juice (BJ) and placebo (PLA) conditions in a 2 x 6 x 100m swimming test.

		Block 1
		1st	2nd	3rd	4th	5th	6^th/Rest
RPE	BJ	13.22 ± 2.30	14.11 ± 2.90	14.39 ± 2.83^*	15.11 ± 2.56^*	15.61 ± 2.50^*	16.28 ± 2.10^*
RPE	PLA	11.38 ± 2.72^*	13.06 ± 2.46^#^*	14.22 ± 2.13^*	14.83 ± 2.20^*	15.33 ± 2.00^*	16.06 ± 1.62^*
TQR	BJ	13.47 ± 3.47	13.18 ± 3.41	12.53 ± 3.00^*	11.88 ± 2.7^*	12.94 ± 3.07^*	13.65 ± 3.16
TQR	PLA	14.12 ± 3.00	13.41 ± 2.58	12.35 ± 2.29^*	12.12 ± 2.7^*	11.47 ± 2.21^*	14.47 ± 2.93^#
		Block 2
RPE	BJ	14.33 ± 2.30	14.72 ± 2.08	16.83 ± 1.72^#	17.00 ± 2.08	17.78 ± 1.48^#	18.44 ± 1.38^#
RPE	PLA	15.22± 2.04	15.06 ± 2.38	17.00 ± 2.10	17.11 ± 1.78	17.56 ± 1.85	18.22 ± 1.73
TQR	BJ	13.06 ± 2.41	12.18 ± 2.98	10.76 ± 2.14	10.12 ± 2.18	9.71 ± 2.14	12.00 ± 3.52
TQR	PLA	13.00 ± 2.83	12.06 ± 2.51	11.00 ± 2.94	9.88 ± 2.32	9.24 ± 2.11^#	13.59 ± 2.57^#

*Different values (p<0.05) than block 2 in the same condition.

#Different values (p<0.05) from previous repetition in the same block and condition.