USA Today reports that Justin Shroyer, an assistant professor of kinesiology at the University of Louisiana-Lafayette, studied over 100 flip-flop wearers to uncover patterns in their feet and leg movements. While presenting his findings at the American College of Sports Medicine's annual meeting in Baltimore this week, Shroyer explained some of the key problems with these shoes. Namely, he discovered that by trying to grip and hold flip-flops in place, people work the muscles in their shins much harder than when they’re barefoot. He said that shortened strides while wearing flip-flops can also strain the lower legs.
"The more the shoe conforms to your foot, the better off your foot and leg will be," Shroyer told USA Today. "If it's loose, your foot has to work harder to keep your flip-flop on." He said that more structured flip-flops with deepened heel cups and defined arches can remove some of the stress from your feet and legs, but that a sneaker is still preferred when doing extensive walking or activity.
When it comes to brands, some are better than others. Those ultra-affordable Old Navy flip-flops may be appealing and available in every color, but your feet will pay the price if you’re doing much more activity than sitting around at a barbeque. Dr. Sutera lists Crocs, Clarks, Born, Teva, and Birkenstock as acceptable brands for light to moderate use. For a higher end option, Dr. Positano is impressed with the offerings from Tory Burch, Chanel, Prada, and Bally. Here's a complete list of flip-flops given the APMA Seal of Acceptance.
Even with a comfortable flip-flop, you should limit your use to no more than a few hours of wear. "If you’re hanging around the pool or going to the beach it’s fine. They’re not going to kill you," says Dr. Positano. "Where people get into trouble is when they use them all day, walking around, and standing for a long period of time." The worst scenario, perhaps, is what Dr. Positano refers to as the "Disney World fracture." "You have a person who’s already walking more than they’re accustomed too. Pair that with foot gear with no support, and you have the quickest way to arrive at the vacation from hell. Trips are ruined because people develop stress fractures, knee problems, and hip and back problems."
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I loved this post. I stand in my closet surveying my DC Shoes some times, and look at the seams and details because it's fascinating to me............
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