Sometimes the best way to move ahead in running is by going backwards—literally. Although the research is limited, there may be some benefits. Running backwards uses 30 percent more energy than moving forward at the same speed, according to a 2011 study, while other research has found that this uncommon technique—in which runners strike on the front of the foot and launch from the heels—might also save your knees by creating less impact on the front of the knees. The biggest drawback? Not being able to see where you’re going, of course—so stick to a track or run with two forward-facing friends alongside you.
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