Table 3. Correlation coefficients of anthropometric and fitness characteristics with medium serve velocity.

Anthropometrics	National		Professional		Total players
	n = 8		n = 7		n = 15
	r	p	r	p	r	p
Body mass (kg)	0.934	0.001	0.337	0.459	0.776	0.001
Height (cm)	0.914	0.002	0.692	0.085	0.851	<0.001
BMI (kg·m-2)	0.330	0.425	-0.086	0.854	0.220	0.431
Arm (cm)	0.818	0.013	0.007	0.988	0.603	0.017
Forearm (cm)	0.858	0.006	0.607	0.148	0.780	0.001
Thigh (cm)	-0.746	0.034	0.554	0.197	-0.087	0.759
Leg (cm)	0.773	0.025	0.236	0.611	0.677	0.006
Physical test
Grip strength (kg)	0.896	0.003	0.326	0.475	0.618	0.014
CMJ (cm)	0.847	0.008	0.362	0.425	0.664	0.007
MBT Shot put (m)	0.983	<0.001	0.825	0.022	0.932	<0.001
MBT Overhead (m)	0.746	0.034	0.501	0.252	0.626	0.013
Jump on service (s)	0.205	0.626	0.643	0.168	0.338	0.238

BMI = body mass index; CMJ = countermovement jump; MBT = medicine ball throw;

r = Pearson correlation