Table 2.
Average muscle thicknesses (cm).
Variable
Sprinters
Hurdlers
Rest
Contracted
Rest
Contracted
Left
IO Thickness
1.4 (± 0.2)
1.8 (± 0.6)
1.2 (± 0.3)
1.7 (± 0.5) *
p = 0.002; d = 1
EO Thickness
0.9 (± 0.2)
1.1 (± 0.2) *
p = 0.003; d = 1
0.9 (± 0.1)
1.0 (± 0.2) *
p = 0.017; d = 0.5
Right
IO Thickness
1.1 (± 0.2)
1.7 (± 0.3) *
p < 0.001; d = 2
1.1 (± 0.3)
1.3 (± 0.4) *
p = 0.018; d = 0.5
EO Thickness
0.8 (± 0.1)
0.9 (± 0.1)
0.8 (± 0.1)
0.8 (± 0.1)
Data are mean (± standard deviation) within-group. p-values are compared to rest within group. Following mean (± standard deviation) are p-values and Cohen’s d effect size for statistically significant values (*).