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Journal of Andrology, Vol 3, Issue 3 184-192, Copyright © 1982 by The American Society of Andrology

A Comparison of Subjective and Objective Sperm Motility Evaluation

JON S. WALKER 1, HOWARD WINET 2, AND MATTHEW FREUND 1

1 Department of Physiology, Southern Illinois University at Carbondale
2 Department of Physiology, Southern Illinois University at CarbondaleEngineering Science Department, California Institute of Technology, Pasadena, California

A series of semen samples that had been recorded on motion picture film, then evaluated via standard visual techniques by a number of well established fertility clinics (Van Duijn et al (1971)), was analyzed frame-by-frame for sperm motility ratings with the aid of a movie reader-computer image analysis system. Results of the latter analysis were considered an objective norm. Statistical comparison of the subjective and objective sets of data revealed that sperm % motility could be subjectively rated with reasonable accuracy when the percentage of sperm moving progressively at least 30 µm/second-1 was outside the range of 34-57. Within this range, however, there is a better than 93% chance for an erroneous subjective assessment. When the results of the computer method were compared with those of the spectrophotometric method of Atherton (1975), a poor correlation was obtained, indicating that if the latter method is an accurate measure of motility, it does not discriminate progressive motility.

     Key words: sperm motility, statistical comparison, computer analysis

Submitted on October 13, 1980
Revised on June 3, 1981
Accepted on September 28, 1981




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Copyright © 1982 by The American Society of Andrology.