London - The long-held belief that if you want to improve your chances of conception you should lie with your knees up after making love is a myth, scientists say.
Fertility clinics have for years recommended that women stay immobile with their knees in the air after artificial insemination. But the study found little difference in conception rates between patients who followed this advice and those who got up immediately. There was even evidence that getting up improves pregnancy chances.
Scientists say the same should be true of women seeking to conceive naturally.
Researchers from the VU University Medical Centre in Amsterdam studied 479 women undergoing fertility treatment. Half the women had to stay immobile for 15 minutes in bed after artificial insemination, on their backs with their knees in the air and feet flat on the bed.
The other half were asked to get up and carry on with their daily activities.