No cases of recanalization were found either because of motile spermatozoa presence or unplanned pregnancy.

Of the computerized measurements, the mean velocities of motile spermatozoa and the concentration of motile cells were significantly correlated.

This study indicates that freeze-thawing did not alter the functional hyaluronan binding sites of mature motile spermatozoa, and therefore will not alter their fertilizing potential.

It was found that the percentage of motile spermatozoa and the index of motility decrease progressively, at a rate of about 5-10% per hour.