A new government study has found that men who jog have stronger bones than those who do not. And the more often they jogged, the stronger their bones.

The findings are based on questionnaires completed by more than 4,200 men and x-rays of their hipbones as part of the Third National Health and Nutrition Examination Survey. Researchers found that men in their 30's who jog at least nine times a month develop bone density that is at least 5% higher than that of men who jog less frequently. The bone density of joggers was almost 8% better when compared with men who do little or no exercise.

The study's authors noted that this information shows that it doesn't require marathon-like running to build strong bones - even casual jogging can benefit in building stronger bones. While osteoporosis is most often associated with older women, it is not uncommon in men.

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