Table 1.

Statistical significance, effect size, muscle oxygen saturation, heart rate, and blood lactate values at all testing points during both protocols.

Protocol	Variables	TP1	TP2	TP3	P	ES
Submax	SmO2 (%)	59.4 ± 9.1	52.2 ± 10.6	48.3 ± 11.2	0.046a	0.36–1.09
	HR (b·min−1)	154 ± 19.7	170 ± 8.8	174 ± 8.9	0.003a,b	0.45–1.40
	BLa (mmol·L−1)	3.5 ± 1.4	8.4 ± 2.5	11.8 ± 3.0	0.000c,d,e	0.52–1.24
Max	SmO2 (%)	57.0 ± 6.4	47.8 ± 9.0	37.8 ± 11.4	0.001c	1.19–1.20
	HR (b·min−1)	145 ± 14.2	167 ± 11.0	172 ± 6.4	0.000c,d,e	0.57–0.22
	BLa (mmol·L−1)	4.4 ± 1.5	9.5 ± 2.6	12.7 ± 2.9	0.000c,d,e	0.49–1.16

Submax protocol: 8 × 50 m; Max protocol: 4 × 15 m; TP₁, Testing point after the 8 × 50 m or the 4 x 15 m; TP₂, Testing point after the 1st 4 × 25 m; TP₃, Testing point after the 2nd 4 × 25 m; SmO₂, muscle oxygenation; BLa, blood lactate concentration; HR, heart rate;

^aTP₁ significantly different from TP₃ (p < 0.05),

^b TP₁ significantly different from TP₂ (p < 0.05);

^c TP₁ significantly different from TP3 (p < 0.001);

^d TP₁ significantly different from TP₂ (p < 0.001);

^eTP₂ significantly different from TP₃ (p < 0.001).