A recent survey conducted across the United States has revealed that when partners share the responsibility of their child, their sex life improves significantly. The survey further claims that partners who split their duties feel more sexually and emotionally satisfied.

A team of sociologists from the Georgia State University in the U.S. studied more than 600 married couples during the research. The team found that in couples in which fathers share the responsibility of their child, frequent and better sex takes place. The responsibility includes performing the duties related to childcare, such as praising, playing and rule-making.

The researchers derived their conclusion from a study called the 2006 Marital and Relationship Study, which was conducted with an aim to look into the relationship between married heterosexual couples. The study results revealed that in couples when women perform more than 60 percent of the duties related to child care, the sexual and emotional satisfaction is low. Such women scored severely low in terms of relationship satisfaction and conflict.

"One of the most important findings is that the only child care arrangement that appears really problematic for the quality of both a couple's relationship and sex life is when the woman does most or all of the child care," Daniel Carlson, the lead researcher, said.

On the other hand, fathers engaged with the duties of childcare showed greater levels of satisfaction. In such couples, the level of satisfaction significantly improved in women as well.

"We conclude that being an engaged father is very important to men. If it weren't, we wouldn't see such a high level of satisfaction," said Carlson. "It suggests that father engagement and sharing childcare with one's partner is important to both sexes."

The researchers also found that when fathers have all the responsibility of the childcare, except feeding and bathing the child, their level of satisfaction dropped. However, satisfaction rate remained the same among their lives.

The researchers presented the study details at the meeting of the American Sociological Association, held in Chicago.