Table 8.

Beat cross frequency (BCF) of human spermatozoa (n = 51) exposed to NTP of varying time intervals.

BCF [Hz]	0 s	15 s	30 s	60 s	90 s
0 h	28.39 ± 1.09	26.81 ± 0.97	26.56 ± 1.22	24.53 ± 1.16 *	24.03 ± 0.82 *
2 h	25.50 ± 1.12	24.10 ± 2.31	23.93 ± 2.27	21.91 ± 1.22 *	21.13 ± 3.11 *

Mean ± SEM. * p < 0.05. Lines: times of NTP exposition. Columns: evaluation times.