An average of four daily minutes of this sort of activity appears to protect the heart health of women who don’t otherwise exercise, researchers reported Dec. 3 in the British Journal of Sports ...
The question is important, the authors said, particularly for women who don't or can't exercise regularly because women tend to have a lower level of cardiorespiratory fitness than men at any age.
The participants were all between the ages of 40 and 79, and they did not report engaging in any type of structured exercise. Women showed the most pronounced effects of short bursts of activity.