Table 1.

Body composition, maximal strength, maximal aerobic velocity, and volume performed in the leg-press in four sets (at 80% of maximal strength), after high-intensity intermittent exercise pre and post 28 days of supplementation and strength training.

Variables	Group	Pre	Post	Effect Size
Maximal strength (kg)	β-alanine	340 ± 61	410 ± 71 *	1.05
	Placebo	317 ± 67	368 ± 77 *	0.70
Maximal strength relative to body mass (kg/kg)	β-alanine	4.2 ± 0.5	5.1 ± 0.6 *	1.63
	Placebo	4.1 ± 0.6	4.8 ± 0.7 *	1.08
Maximal aerobic velocity (km/h)	β-alanine	13.9 ± 1.0	13.9 ± 1.1	0.00
	Placebo	13.2 ± 1.1	13.3 ± 1.0	0.10
Volume performed in leg press (kg)	β-alanine	8754 ± 4179	11922 ± 3494 *	0.82
	Placebo	7376 ± 3394	10953 ± 4162 *	0.95
Volume performed in leg press relative to body mass (kg/kg)	β-alanine	107.2 ± 46.1	145.6 ± 33.6 *	0.95
	Placebo	96.2 ± 37.7	142.9 ± 46.3 *	1.11
Body mass (kg)	β-alanine	80.1 ± 8.0	80.8 ± 8.1 *	0.08
	Placebo	77.3 ± 15.8	77.5 ± 15.4 *	0.01
Fat-free mass (kg)	β-alanine	64.0 ± 5.7	65.8 ± 6.3 *	0.30
	Placebo	62.4 ± 9.2	63.1 ± 10.0 *	0.07
Fat mass (kg)	β-alanine	19.8 ± 6.5	19.5 ± 7.5	0.04
	Placebo	19.6 ± 11.9	19.3 ± 11.7	0.03
Body fat (%)	β-alanine	18.9 ± 5.7	17.8 ± 5.1	−0.20
	Placebo	17.3 ± 6.8	19.3 ± 11.7	0.22
Extracellular water (L)	β-alanine	18.0 ± 1.8	18.6 ± 2.0 *	0.32
	Placebo	17.9 ± 2.7	18.1 ± 3.1 *	0.07
Intracellular water (L)	β-alanine	28.3 ± 2.9	29.1 ± 3.2 *	0.26
	Placebo	28.2 ± 4.7	28.4 ± 5.3 *	0.04
Total body water (L)	β-alanine	46.4 ± 4.8	47.7 ± 5.2 *	0.26
	Placebo	44.8 ± 6.7	45.0 ± 7.6 *	0.03
Resistance (ohms)	β-alanine	457.1 ± 32.9	449.7 ± 33.3	0.24
	Placebo	477.1 ± 56.4	470.9 ± 70.8	0.10
Reactance (ohms)	β-alanine	52.3 ± 6.4	51.1 ± 8.0	0.16
	Placebo	53.8 ± 6.3	52.2 ± 7.1	0.24

Note: Data are mean ± standard deviation; *: higher than pre values (p < 0.05).