Table 2.

Muscle phosphocreatine ([PCr]) and inorganic phosphate ([P_i]) concentrations and pH at T_lim during incremental (INC KEE) and intermittent (INT KEE) knee extension exercise pre- and post-supplementation for the placebo (PL) and β-alanine (BA) groups.

	INC KEE				INT KEE
	PL		BA		PL		BA
	Pre	Post	Pre	Post	Pre	Post	Pre	Post
End-exercise [PCr] (%)	53 ± 13	52 ± 9	52 ± 9	51 ± 10	49 ± 9	47 ± 12	40 ± 8	44 ± 10
End-exercise [Pi] (%)	442 ± 132	412 ± 73	418 ± 105	431 ± 91	422 ± 84	414 ± 110	510 ± 134	469 ± 58
Baseline pH	7.03 ± 0.02	7.04 ± 0.04	7.05 ± 0.03	7.05 ± 0.01	7.04 ± 0.02	7.04 ± 0.02	7.04 ± 0.01	7.05 ± 0.02
End-exercise pH	6.77 ± 0.20	6.82 ± 0.14	6.88 ± 0.07	6.84 ± 0.12	6.65 ± 0.23	6.57 ± 0.25	6.29 ± 0.15	6.33 ± 0.23
ΔpH	−0.26 ± 0.20	−0.22 ± 0.15	−0.14 ± 0.03	−0.19 ± 0.12	−0.38 ± 0.24	−0.46 ± 0.24	−0.75 ± 0.16	−0.72 ± 0.24

[PCr] and [Pi] are expressed relative to resting baseline.