People who walk regularly for exercise may notice that their speed declines and they tire more easily as they age.
But is that because they are aging? Could that reduction in walking economy be slowed or reversed by other types of exercise, such as running?
Upstate Medical University exercise physiologist Carol Sames explains how running was found to be more beneficial than walking in an intriguing study that compared walkers and runners in Boulder, Colorado. She says running is not appropriate for everyone, and she offers some other ways walkers can add intensity to their workouts.
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