You may have seen people walking backwards on the treadmill at the gym—sometimes on an incline, and sometimes flat—and thought they looked absurd. But they haven’t lost their minds. They’ve just ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." In case you missed it, good ol' fashioned walking is so trendy. From rucking to the 12-3-30 treadmill ...
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