Missionary Position Places Least Stress on the Spine in Women

Sex is an enjoyable and essential part of a healthy lifestyle, but a sore back takes the fun out of it. Eighty-five percent of men and women will have back pain at some point in their lives. Back expert Stuart McGill from McMaster University in Canada, and co-workers, found that doggy-style sex was the least stressful to the male spine, while the missionary position was least stressful to the female spine. The researchers measured spinal biomechanics during sex using two missionary positions, spooning and two forms of doggy style. Doggy style with the woman’s arms outstretched put the male spine in an upright, neutral position, which placed the least stress on spinal nerves and disks. As a compromise, doggy-style sex with weight supported on the forearms was best for minimizing spinal stress in men and women. (European Spine Journal, 24: 513-520, 2015; Spine 39:1633-1639, 2014)

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