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Age and male erectile responsiveness
Archives of Sexual Behavior
|January 1, 1977
Summary
Younger men experience significantly faster penile erection rates compared to older men. Penile circumference increase strongly correlates with penile shaft temperature rise during arousal.
Area of Science:
- Physiology
- Human Sexuality
- Gerontology
Background:
- Erectile function can change with age.
- Understanding age-related differences in sexual response is important.
Purpose of the Study:
- To compare the rate of penile circumference increase between young and old men during erotic stimulation.
- To determine the correlation between penile shaft temperature and penile circumference increase.
Main Methods:
- Two groups of men (young: 19-30 years; old: 48-65 years) were studied.
- Subjects were exposed to an erotic movie.
- Penile circumference and shaft temperature were measured using strain gauges and thermistors.
Main Results:
- The younger group's erection rate was 5.8 times faster than the older group's.
- A significant positive correlation (r=0.75) was found between penile shaft temperature increase and penile circumference increase.
Conclusions:
- Age significantly impacts the speed of erection response.
- Penile temperature increase is a reliable indicator of penile circumference increase during arousal.