Table 1. Physical characteristics of the subjects.

	All swimmers	Junior	Senior
	(n = 34)	(n = 24)	(n = 10)
Height (cm)	165.2±6.5	163.7±5.1	168.9±8.0*
Body mass (kg)	53. 6±5.6	53.2±5.3	54.6±6.3
Age (years)	17.5±3.3	15.9±1.0	21.4±3.6*
Training (h·week−1)	33.1±10.0	29.9±8.2	40.7±10.1*
Years of practice (years)	9.6±2.5	8.7±1.5	11.7±3.3*

Values are mean ± SD.

^*Significant differences between senior and junior swimmers (unpaired t-test, P<0.05).