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Published online 14 May 2008 | 453, 267 (2008) | doi:10.1038/453267b
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A side-splitting tale
Sex simulator sheds light on condom ruptures.
Researchers who used a device to simulate human copulation report that more than 90% of condom breakages occur when the sheath is stretched repeatedly in the same place without returning to a relaxed state between stretches.
International standards for condom testing require two evaluations of the tensile strength of the condom material.
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