A new study of muscle strength in men from the US and Canada has found that muscle drawing strength is stronger in gay than straight men.
The findings are published in the American Journal of Physiology-Regulatory, Integrative and Comparative Physiology.
The study looked at the muscles of more than 2,000 men from around the US, Canada and the UK.
It found that gay men had more lean muscle mass than straight and bisexual men.
Gay men also had stronger biceps, triceps, hip extensors, glutes and hip extensor muscles.
The muscles of straight men had less strength than gay men’s muscle drawing.
The research also showed that the strength of gay muscle drew was lower than that of straight muscle, although the difference was not statistically significant.
But it is not clear whether this is because gay men tend to draw muscles from more muscles than straight or bisexual men, because the data were collected in the 1970s.
“There’s an idea that the gay muscle draws have the same amount of muscle mass as the straight muscles, but the data shows that there are differences,” said Professor Paul Larkin, a biomechanical researcher at the University of Edinburgh.
“You need to look at a range of data, but there is evidence that there is a greater muscle draw in the gay than in the straight muscle.”
The study used an anthropometric scale to measure muscle strength and muscle drawing, which was used to determine muscle mass.
The results are consistent with previous studies showing that gay muscle draw strength is higher than that in straight and bi men, Dr Larkin said.
“In terms of a relationship with sexual orientation, there’s a little bit of evidence that this might be due to muscle draws being more intense in the presence of a partner.”
The strength of the gay and straight muscle draws are also similar, with the strength in the heterosexual male muscles being stronger than that found in gay muscle.
The researchers also found that the straight and gay muscle pulls were not different, which suggests they were similar to a strength measure known as the ‘muscle loading test’, which measures the strength a muscle can produce when a load is placed on it.
“This study really suggests that this is a function of muscle draw, and not of muscle performance,” Dr Larkins said.
It was also interesting that the muscle drawing was stronger in the right arm.
“One of the things that’s surprising is that there’s more of an increase in muscle strength when there’s an increase of muscle activation,” Dr Gentry said.
Professor Larkin and his colleagues have not yet compared the strength and size of gay and bisexual muscle draw with that of other muscle groups in men.
“We think that gay male muscles may have a more pronounced response to the loads that are placed on them than straight muscle,” Dr Sacks said.
The finding could be a useful tool for measuring the strength gains of a gay male muscle, as a gay man might be more likely to choose a more aggressive exercise programme.
Professor Gentry has already conducted a study that looked at muscle strength gains for men with gay sexual orientation and found that while gay men did not gain strength as much as straight men’s or bisexual women’s, they did gain more muscle mass in comparison to the straight men and bisexual women.
Professor Paul Sacks from the University College London said that gay muscles were more powerful than those of straight and the bi men in the same study.
“These findings could be used to provide better recommendations for the use of strength training programs for gay and lesbian men,” he said.
There is also evidence that gay and bi women’s muscle strength may be stronger than straight women’s and men’s.
Professor Sacks and his team conducted a similar study in a group of men and women with gay and heterosexual sexual orientation.
“It was pretty clear that the results of the study are a lot more consistent with the data from other studies,” Professor Sack said.
This research is the latest to suggest gay and trans men’s muscles have greater muscle strength than straight male and bisexual man muscles.