Scientists say that exercising not only trims the waistline but will substantially increase your salary.

Jogging, swimming or lifting weights in the gym three times a week could boost your income by up to 9%, a Cleveland State University in Ohio study say.

Even taking moderate exercise such as a regular walk has a positive effect on earnings, a study has found.

Employers may view those participating in regular activity as more determined and dedicated.

Fit staff members were also more likely to work harder because of the psychological – as well as physical – benefits of keeping fit.

Scientists say that exercising not only trims the waistline but will substantially increase your salary

The study examined two questionnaires in the US involving more than 12,000 people.

Details about salaries and the extent to which people exercised were analyzed.

The researchers found that people exercising three times a week could expect a salary between 6 and 9% greater than those who do not.

For those exercising between one and three times a month, the benefit was still an additional 5%.

The report, by Dr. Vasilios Kosteas from Cleveland State University, said: “In addition to the positive impacts on heart health, weight and other medical issues, studies show that exercise leads to improved mental function, psychological condition and higher energy levels.

“All three of these traits can translate into higher earnings.”