According to the private gynecology clinic New H Medical in New York, the most effective position is missionary, with a pillow placed under the woman’s pelvis. The study was conducted using an ultrasound scanner, with researchers examining a pair of volunteers as they had sex in five popular positions for 10 minutes. They then looked at which position was most successful in stimulating clitoral blood flow. Dr Kimberley Lovie, a researcher in New York who led the study, wrote: “The supposed benefits of various intercourse positions are described in many magazines, books and public forums. “However, there is little scientific research evaluating the correlation between different intercourse positions and their ability to produce female orgasm. “The aim was to compare clitoral blood flow before and after intercourse in each of the five positions, after a standardized period of time.” Dr Lovie went on to mention the least effective position. “The kneeling/rear entry position produced the least direct contact with the clitoris and resulted in a negligible increase in blood flow compared to face-to-face positions,” he added. The new research follows another study that looked at the female orgasm and found that “greece” is not a part of it. Researchers at the University of Ottawa looked at various physical sensations that occur during a female orgasm, including “restless/shallow breathing”, “increased blood pressure” and “hot flashes”. However, they also identified some oft-misunderstood senses that, contrary to popular opinion, do not exist. “We recommend that the ‘moaning’ component be permanently removed from the measure,” the study, published in The Journal of Sexual Medicine, said, adding that female orgasm is a “poorly understood aspect of female sexual response.”