It's not necessarily unusual to see people in odd positions in fitness classes at the gym—the birthing squat, downward dog, seal and happy baby are all "funny-looking" moves with real benefits, as Shape magazine reports.
But crawling? Like a baby? For an extended period of time? It's a thing, reports the Washington Post, and one big proponent is Tim Anderson, co-founder of a fitness system called Original Strength.
He believes that, by practicing the movement patterns of very young children, we can "press reset" and reclaim strength and mobility we've lost over time. A takeaway quote from a chiropractor in the piece who preaches it to patients: "Crawling is the new plank." The basic premise is that babies make use of all four limbs when figuring out how to walk, which is a healthy thing, but we upright humans soon forget that and often wind up in pain.
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People are crawling in and out of gyms in other countries, too. One instructor is teaching the "creeping cat" in a free class on the beach in Vietnam, which involves crawling on one's stomach in the sand, reports VietnamNet.
Similarly, a post at Coach out of the UK advises people to imitate a bear crawl to beef up core strength. Expect to see similar sights at gyms.
(Check out who saved this baby crawling toward a highway.)
This article originally appeared on Newser: Why People Are Crawling Like Babies at the Gym