Table 1 LA, HR and RPE responses during the soccer matches. Values are means (±SD).

Variable	15 (1)	30 (2)	45 (3)	60 (4)	75 (5)	90 (6)
LA (mmol·L-1)	4.96 (2.27)3,4,5,6	4.44 (2.30)1,4,5,6	4.14 (1.96)1,4,5	3.40 (1.57)1,2,3	3.63 (1.31)1,2,3	3.09 (1.30)1,2,3
HR (b·min-1)	167 (11)4,5,6	169 (10)3,4,5,6	165 (12)1,2,6	162 (8)1,2	161 (10)1,2	161 (9)1,2,3
RPE	10.4 (1.8)2,3,4,5,6	11.5 (1.6)1,3,4,5,6	12.6 (1.3)1,2,5,6	12.7 (1.3)1,2,5,6	13.7 (1.7)1,2,3,4,6	14.5 (1.6)1,2,3,4,5

A: blood lactate, HR: heart rate, RPE: rate of perceived exertion. Superscripts denote significantly (p < 0.01) differences among the game periods.