Table 4 Material most used in relation to gender.

	Female (%)	Males (%)
No material	32.5	26.2
Kickboard	29.2	18.2 *
Fins	16.9	8.4 *
Pull buoy	14.9	32.9 *
Paddles	1.3	9.3 *
Cardio frequency	0.0	0.0
Chronometer	5.2	4.9

* p < 0.05.