Parameters | Parameter description | unit |
Motility | Percentage of sperm in different motility group based on velocity and progression | % |
Concentration | Number of spermatozoa per milliliter | ×106 mL−1 |
VAP | Average path velocity based on every 11th frame of VCL path | μms−1 |
VSL | Straight-line velocity along shortest path from start to end point | μms−1 |
VCL | Curvilinear velocity along actual swimming path | μms−1 |
ALH | Amplitude of lateral head displacement | μms−1 |
BCF | Beat cross frequency based on VCL crossing VAP per second | Hz |
STR | Straightness, expressed as VSL/VAP | % |
LIN | Linearity of a curvilinear path, expressed as VSL/VCL | % |