The results from the research, published in the Journal of Preventative Medicine, echo findings from previous studies. Last year a Florida study showed that obesity was more prevalent among people who commuted to work by car.
The most recent study surveyed 4,300 Texans and found that those who commuted more than 15 miles to work were less likely to have time to exercise than those who lived closer to their workplaces.
The results also revealed that people who drove over 10 miles had higher blood pressure due to their sedentary lifestyles.
The American researchers were careful not to blame transport for the findings, instead choosing to take other factors in to account, such as the areas from which people were driving. Perhaps neighbourhoods more than 15 miles away were less affluent, with a lower standard of education. These factors could have an impact on the type of food people eat.
British experts, however, were less sceptical. Stephen Joseph, executive director of the Campaign for Better Transport, said: “Commuting by car is bound to be linked to obesity. If you commute by public transport you still have to walk to places.”
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