Researchers in Denmark examined the relationship between leisure-time physical activity and suspected bacterial infections during a one-year follow up.

Results showed that compared with sedentary behavior, low leisure-time physical activity was associated with a 10 percent lower risk of any suspected bacterial infection. Further, low and moderate levels of leisure-time physical activity were associated with a 21 percent and 32 percent reduction of suspected cystitis (urinary tract bacterial infections), respectively – compared with individuals classified as sedentary. Suspected respiratory tract bacterial infections, however, were not associated with physical activity level.

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