June 3rd, 2010
05:17 PM ET

Does increased activity mean higher GPA?

By Georgiann Caruso
CNN Medical Associate Producer

Twenty minutes of daily vigorous physical activity among college students may lead them to have grade point averages about .4 higher, on a scale of 4.0, compared with students who do not exercise.

A study presented Thursday at the American College of Sport Medicine's annual meeting demonstrated the relationship and reinforced the notion that exercise reduces stress, improves performance and increases a sense of well-being.

Joshua Ode supervised the study at a university in the northern U.S., of students ages 18-22. Ode said, "If the students are improving in the classroom, it may create a better campus environment. You're creating more successful students, which is the goal of universities."

Researchers studied 266 undergraduates and defined moderate activity as those exercises which don't make you sweat or breathe hard, and vigorous activity for those which do, of any type. Their findings were consistent regardless of gender or major.

Ode said one of the next questions for further study should include the impact of activity on GPA throughout college.

And it doesn't have to be seven days a week, Ode said. But the research suggests the more often, the better.

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Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.