Abstract
The recent introduction of various devices for computer-assisted sperm analysis allows us to have not only objective measurements of the seminal parameters but also to determine some characteristics of sperm motion such as curvilinear and linear velocity and amplitude of lateral head displacement that cannot be obtained by routine analysis. These new seminal parameters seem to be very useful in the diagnosis of male infertility and, among them, ALH seems to play a more important role; in one of our studies we found a significant correlation between this parameter and the results of the bovine cervical mucus penetration test (Penetrak). Furthermore it is possible to determine sperm subpopulations for each parameter and so it will be possible to express a more accurate judgement not only on the fertilizing capacity of semen but also to know the effects on spermatozoa of different activating and capacitating treatments.
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