. 2023 Jun 30;14:1189688. doi: 10.3389/fphys.2023.1189688

TABLE 4.

Mean and average peak values of external loads and skill performance for the three different multifeeding interval training protocols.

		T₁₀	T₃₀	T₅₀	rANOVA
Total distance [m]	Sum	756 ± 168 ^c	704 ± 130	655 ± 108 ^a	p = 0.04	η² = 0.05
d [m·min⁻¹]	Mean	76 ± 17 ^c	70 ± 13	65 ± 11 ^a	p = 0.04	η² = 0.05
v [m·s⁻¹]	Mean	1.3 ± 0.3 ^c	1.2 ± 0.2	1.1 ± 0.2 ^a	p = 0.04	η² = 0.05
Jumps [min⁻¹]	Mean	6.7 ± 3.1 ^b	8.8 ± 3.8 ^a	8.5 ± 4.2	p < 0.01	η² = 0.09
SF [s⁻¹]	Mean	0.58 ± 0.05	0.57 ± 0.05	0.55 ± 0.06	p = 0.08	η² = 0.05
Smash [%]	Mean	22.4 ± 6.0	22.5 ± 6.6	23.8 ± 7.9	p = 0.65	η² = 0.01
Error rate [%]	Mean	16.3 ± 6.0	18.7 ± 4.0	18.3 ± 4.0	p = 0.12	η² = 0.05
Target zone [%]	Mean	21.9 ± 5.9	23.7 ± 8.2	23.2 ± 8.3	p = 0.63	η² = 0.01

Values described as average ± standard deviation; Total distance, accumulated running distance; d, running distance per minute; v, running velocity; Jumps, jump frequency per minute; SF, stroke frequency per second; Error rate, number of mistakes (net, out, don`t reach the ball) relative to all shots; Smash, number of smash relative to all shots; Target zone, relative number of smash shots that were placed in hitting zone 4; T₁₀, 10 s intervals protocol; T₃₀, 30 s intervals protocol; T₅₀, 50 s intervals protocol.

^{^a}

significant different to T₁₀ (p_tukey < 0.05).

^{^b}

significant different to T₃₀ (p_tukey < 0.05).

^{^c}

significant different to T₅₀ (p_tukey < 0.05).