Table 2.

Pearson correlation coefficients between bilateral mean trunk muscle thickness and linear sprint, agility, and jump performance in male football players

Transversus abdominis (mm)	r value	p value	95% CI
Linear sprint time (s)	-0.739	0.002*	-0.908, -0.365
Agility time (s)	-0.704	0.003*	-0.894, -0.300
Jump height (cm)	0.493	0.062	-0.026, 0.803
Internal oblique (mm)	r value	p value	95% CI
Linear sprint time (s)	-0.746	0.001*	-0.910, -0.378
Agility time (s)	-0.746	0.001*	-0.910, -0.378
Jump height (cm)	0.550	0.034	0.053, 0.829
External oblique (mm)	r value	p value	95% CI
Linear sprint time (s)	-0.257	0.355	-0.680, 0.294
Agility time (s)	-0.385	0.156	-0.749, 0.159
Jump height (cm)	0.326	0.235	-0.224, 0.718
Rectus abdominis (mm)	r value	p value	95% CI
Linear sprint time (s)	-0.461	0.084	-0.787, 0.067
Agility time (s)	-0.426	0.113	-0.770, 0.110
Jump height (cm)	0.427	0.113	-0.109, 0.771
Lumbar multifidus (mm)	r value	p value	95% CI
Linear sprint time (s)	-0.484	0.067	-0.798, 0.038
Agility time (s)	-0.485	0.067	-0.799, 0.036
Jump height (cm)	0.535	0.040	0.031, 0.822

(^*=Bonferroni-adjusted significance threshold: p < 0.0033)