How men perceive traditional male gender norms and masculinity can affect their behaviour, researchers said.
In general, 'macho,' highly masculine men are more likely to engage in stereotypical male behaviours, such as risk taking, substance misuse, and acts of aggression, they said.
But they wanted to find out if 'male discrepancy stress' - which describes men who see themselves as not only falling short of traditional masculine gender norms but who also worry that others view them in this light as well - had any impact on these behaviours.
The prevalence of injury sustained through violence and risky behaviours is highest in men aged 18 to 44, which also happens to be the largest male age group in the US, so all the survey participants were aged between 18 and 50.
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Analysis of the results showed that men who considered themselves less masculine than average and who experienced male discrepancy stress were more likely to say they had committed violent assaults with a weapon as well as assaults resulting in injury to the victim than those who didn't feel highly masculine, but who didn't worry about it.
"This may suggest that substance use/abuse behaviours are less salient methods of demonstrating traditional masculinity in contrast to behaviours related to sex and violence, perhaps due to the potentially private nature of the habit," researchers said.
While highly masculine men are at high risk of violence, less masculine men who experience discrepancy stress may be equally at risk, researchers said.
The study was published in the journal Injury Prevention.