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. 2020 Oct 27;17(21):7877. doi: 10.3390/ijerph17217877

Table 6.

Comparison of balance performance between groups before (pre) and after (post) the 10-week trial.

Variables Group Pre-Trial Post-Trial p Value d (Cohen)
Y Balance Test Right support leg Right leg/Left (cm) Loaded plyometric group 86 ± 8 91 ± 8 * 0.027 a 0.65 (medium)
Unloaded plyometric group 82 ± 8 86 ± 7 0.097 b 0.40 (small)
Control 83 ± 8 83 ± 6 0.471 c 0.29 (small)
Right leg/Back (cm) Loaded plyometric group 111 ± 7 118 ± 5 + 0.014 a 0.71 (medium)
Unloaded plyometric group 106 ± 10 110 ± 9 0.015 b 0.59 (medium)
Control 109 ± 8 112 ± 7 0.679 c 0.21 (small)
Right leg/Right (cm) Loaded plyometric group 55 ± 9 60 ± 9 0.185 a 0.44 (small)
Unloaded plyometric group 53 ± 12 53 ± 12 0.522 b 0.15 (small)
Control 52 ± 10 52 ± 10 0.554 c 0.26 (small)
Left support leg Left leg/Left (cm) Loaded plyometric group 88 ± 10 93 ± 10 + 0.011 a 0.74 (medium)
Unloaded plyometric group 82 ± 8 85 ± 5 0.066 b 0.44 (small)
Control 84 ± 7 87 ± 7 0.873 c 0.12 (small)
Left leg/Back (cm) Loaded plyometric group 114 ± 6 121 ± 5 *** 0.001 a 0.98 (large)
Unloaded plyometric group 109 ± 12 108 ± 10 0.286 b 0.25 (small)
Control 113 ± 6 112 ± 7 0.155 c 0.46 (small)
Left leg/Right (cm) Loaded plyometric group 53 ± 8 55 ± 8 0.196 a 0.43 (small)
Unloaded plyometric group 55 ± 11 53 ± 11 0.630 b 0.10 (small)
Control 51 ± 11 47 ± 11 0.435 c 0.31 (small)
Stork Balance Test Right leg (s) Loaded plyometric group 2.24 ± 0.76 7.78 ± 4.50 * 0.022 a 0.68 (medium)
Unloaded plyometric group 3.37 ± 2.94 4.86 ± 3.42 <0.001 b 1.00 (large)
Control 2.16 ± 0.61 3.35 ± 2.53 0.011 c 0.74 (medium)
Left leg (s) Loaded plyometric group 2.08 ± 0.39 10.04 ± 6.79 ** 0.008 a 0.76 (medium)
Unloaded plyometric group 2.99 ± 2.71 6.91 ± 5.74 <0.001 b 1.13 (large)
Control 1.78 ± 0.51 3.18 ± 3.13 0.017 c 0.70 (medium)

s = second; * = denotes a significant difference between loaded and control groups; + = denotes a significant difference between loaded and unloaded groups; a = denotes a main effect of group, b = denotes a main effect of time; c = denote a group x time interaction; *: p < 0.05; **: p < 0.01; ***: p < 0.001; +: p < 0.05.