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Table 3 Changes in performance indices

From: Effect of whey vs. soy protein supplementation on recovery kinetics following speed endurance training in competitive male soccer players: a randomized controlled trial

  Placebo Whey Soy
Pre Post-Load 24 h Pre Post-Load 24 h Pre Post-Load 24 h
CON-KE-DL (Nm) 258.4 ± 25.1 256.2 ± 25.8 220.8 ± 26.2a 259.0 ± 33.4 256.3 ± 26.8 230.7 ± 32.4b 255.8 ± 30.0 258.3 ± 23.0 227.3 ± 33.9c
CON-KE-NDL (Nm) 257.8 ± 33.5 255.1 ± 33.1 221.6 ± 31.5a 256.9 ± 28.7 258.7 ± 26.2 227.3 ± 31.1b 257.8 ± 31.2 256.2 ± 24.7 229.4 ± 22.7c
CON-KF-DL (Nm) 157.0 ± 22.8 156.4 ± 22.6 142.1 ± 22.0a 158.2 ± 21.7 156.9 ± 23.5 144.0 ± 21.1b 156.2 ± 23.9 155.4 ± 22.6 141.8 ± 22.4c
CON-KF-NDL (Nm) 155.1 ± 23.2 155.9 ± 22.9 140.6 ± 26.2a 156.7 ± 22.4 155.5 ± 23.8 142.4 ± 21.5b 154.9 ± 22.8 154.0 ± 23.5 141.6 ± 22.1c
ECC-KE-DL (Nm) 330.5 ± 73.5 333.9 ± 74.1 281.7 ± 81.6a 332.6 ± 72.7 331.4 ± 72.9 289.9 ± 80.6b 330.6 ± 72.6 332.8 ± 74 291.8 ± 65.4c
ECC-KE-NDL (Nm) 329.2 ± 47.8 328.3 ± 48.0 284.9 ± 44.4a 329.7 ± 53.8 328.6 ± 51.4 288.4 ± 54.5b 328.9 ± 52.0 329.9 ± 48.8 289.2 ± 49.5c
ECC-KF-DL (Nm) 193.3 ± 31.3 192.0 ± 32.0 154.1 ± 31.1a 195.8 ± 24.4 197.4 ± 25.7 167.0 ± 28.9b 196.5 ± 25.1 194.7 ± 20.0 164.8 ± 23.8c
ECC-KF-NDL (Nm) 192.7 ± 18.7 193.5 ± 23.4 156.4 ± 27.8a 194.2 ± 21.1 193.4 ± 26.2 168.2 ± 20.1b 195.4 ± 22.1 194.0 ± 19.6 166.5 ± 26.3c
10 m sprint time (sec) 1.908 ± 0.076 1.938 ± 0.099 2.020 ± 0.125a 1.934 ± 0.068 1.942 ± 0.069 1.984 ± 0.090 1.896 ± 0.076 1.931 ± 0.081 1.951 ± 0.136
30 m sprint time (sec) 4.580 ± 0.140 4.565 ± 0.161 4.818 ± 0.147a 4.587 ± 0.172 4.574 ± 0.179 4.735 ± 0.178b 4.567 ± 0.150 4.591 ± 0.130 4.743 ± 0.145c
RSA fatigue index (%) 6.39 ± 1.23 6.43 ± 1.16 7.65 ± 1.57a 6.45 ± 1.07 6.43 ± 1.02 7.32 ± 1.27b 6.41 ± 0.96 6.44 ± 0.73 7.43 ± 0.80c
CMJ (cm) 47.1 ± 3.4 47.6 ± 4.3 43.8 ± 3.6a 47.3 ± 3.1 47.0 ± 3.0 44.9 ± 2.5b 46.9 ± 3.2 46.5 ± 3.0 44.3 ± 2.5c
  1. CON concentric, ECC eccentric, KE knee extensors, KF knee flexors, DL dominant limb, NDL non-dominant limb, RSA repeated sprint ability, CMJ countermovement jump. Note: Data are presented as means ± SD. a denotes a significant difference with pre in placebo at P < 0.05. b denotes a significant difference with pre in whey at P < 0.05. c denotes a significant difference with pre in soy at P < 0.05
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