Skip to main content
Effect of freezing on the relative escape force of sperm as measured by a laser optical trap.
- Author(s): Dantas, ZN;
- Araujo, E;
- Tadir, Y;
- Berns, MW;
- Schell, MJ;
- Stone, SC
- et al.
Published Web Locationhttps://doi.org/10.1016/s0015-0282(16)57316-6
ObjectiveTo determine the possible effect of freezing on sperm escape force as measured by laser trap.
DesignControlled clinical study.
SettingNormal volunteers, academic setting.
PatientsNormal, healthy volunteers.
InterventionSperm selection, freezing and thawing. Measurement of relative (sperm) escape force before and after freezing.
Main outcome measureComparison of escape force as a measurement of freezing effects.
ResultsWide individual variations noted, with some individuals showing significant increases or decreases. The relative escape force in fresh (76.1 +/- 31.1 mW) and in frozen-thawed samples (75.6 +/- 40.0 mW) were similar.
ConclusionFreezing does not affect the relative escape force of normal sperm. Any possible detrimental effect of freezing on sperm may be related to other sperm functions.
For improved accessibility of PDF content, download the file to your device.