Good dancing male means good health & reproductive potential
"When you go out to clubs people have an intuitive understanding of what makes a good and bad dancer," said co-author Dr Nick Neave, an evolutionary psychologist at Northumbria University, UK.
"What we’ve done for the very first time is put those things together with a biometric analysis so we can actually calculate very precisely the kinds of movements people focus on and associate them with women’s ratings of male dancers."
Dr Neave asked young men who were not professional dancers, to dance in a laboratory to a very basic drum rhythm and their movements with 12 cameras.
These movements were then converted into a computer-generated cartoon – an avatar – which women rated on a scale of one to seven. He was surprised by the results.
"We thought that people’s arms and legs would be really important. The kind of expressive gestures the hands [make], for example. But in fact this was not the case," he said.
"We found that (women paid more attention to) the core body region: the torso, the neck, the head. It was not just the speed of the movements, it was also the variability of the movement. So someone who is twisting, bending, moving, nodding."
Movements that went down terribly were twitchy and repetitive – so called "Dad dancing".
Dr Neave’s aim was to establish whether young men exhibited the same courtship movement rituals in night clubs as animals do in the wild. In the case of animals, these movements give information about their health, age, their reproductive potential and their hormone status.
"People go to night clubs to show off and attract the opposite sex so I think it’s a valid way of doing this," Dr Neave explained.
"In animals, the male has to be in good physical quality to carry out these movements. We think the same is happening in humans and certainly the guys that can put these movements together are going to be young and fit and healthy."
Dr Neave also took blood samples from the volunteers. Early indications from biochemical tests suggest that the men who were better dancers were also more healthy.
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