Monday, December 2, 2013

Is wearing flip flops all the time bad for your feet?

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JuliaX88


I wear flip flops pretty much all year round and am barefoot indoors. I have heard this is bad for my feet because of no arch support with the flip flops or when barefoot. But my feet feel more comfortable this way.


Answer
Contrary to popular belief, feet do NOT need support. From "Survey in China and India of Feet That Have Never Worn Shoes,"
One hundred and eighteen of those interviewed were rickshaw coolies. Because these men spend very long hours each day on cobblestone or other hard roads pulling their passengers at a run it was of particular interest to survey them. If anything, their feet were more perfect than the others. All of them, however, gave a history of much pain and swelling of the foot and ankle during the first few days of work as a rickshaw puller. But after either a rest of two days or a week's more work on their feet, the pain and swelling passed away and never returned again. There is no occupation more strenuous for the feet than trotting a rickshaw on hard pavement for many hours each day yet these men do it without pain or pathology.

Nor does it cause flat feet to go barefoot, rather it's shoes that cause flat feet, especially in children. From "The Influence of Footwear on the Prevalence of Flat Foot,"
In Europe and America flat foot is a common reason for attendance at a children's orthopaedic clinic, but in India children are seldom brought for treatment for flat foot. The few children who do attend with this complaint are from affluent urban families and they all wear shoes. In our clinic we have never seen a child from the farming community or from the family of a manual labourer who complained of flat foot.
...
The high concentration of flat foot among six-year-old children who wore shoes as compared with those who did not, implies that the critical age for development of the arch is before six years.
...
Our cross-sectional study suggests that shoe-wearing in early childhood is detrimental to the development of a normal or a high medial longitudinal arch. The susceptibility for flat foot among children who wear shoes is most evident if there is associated ligament laxity. We suggest that children should be encouraged to play unshod and that slippers and sandals are less harmful than closed-toe shoes.

Another table about childrens' feet, from Take Off Your Shoes and Walk by Simon J. Wikler D.S.C. (Doctor of Surgical Chiropody):
Children whose mothers who objected to going barefoot
VP P F G E
9 44 50 6 0
Children whose mothers had no objection to going barefoot
VP P F G E
0 2 21 16 13
Key:
E - Excellent feet
G - Good feet
F - Fair feet
P - Poor feet
VP - Very poor feet

Does it matter or make a difference: to wear shoes while exercising?




happyhive7


I stay at home to exercise,I'm no gym junkie.I do light weights and my cardio of choice is Tae Bo. But sometimes I dont wear tennie shoes,and remain barefoot or just with socks on.

So my ?? is does it make a great or small impact to wear tennie shoes while exercising,does it help or prevent any injury?

What are the benefits and drawbacks of not wearing/wearing tennie shoes?

Thanks.



Answer
It's better to be barefoot. Contrary to popular belief, feet do NOT need support, even when running and doing sports. From "Survey in China and India of Feet That Have Never Worn Shoes":
"One hundred and eighteen of those interviewed were rickshaw coolies. Because these men spend very long hours each day on cobblestone or other hard roads pulling their passengers at a run it was of particular interest to survey them. If anything, their feet were more perfect than the others. All of them, however, gave a history of much pain and swelling of the foot and ankle during the first few days of work as a rickshaw puller. But after either a rest of two days or a week's more work on their feet, the pain and swelling passed away and never returned again. There is no occupation more strenuous for the feet than trotting a rickshaw on hard pavement for many hours each day yet these men do it without pain or pathology."

From "Athletic Footwear and Chronic Overloading," Sports Medicine, 9(2), 1990, pp. 76-85.:
Obviously, the ideal solution to the running related injury problem in shod populations lies in barefoot locomotion, since protective adaptations seems to be optimized for this state. Normally shod people would have to allow sufficient time for adaptation of the plantar skin and intrinsic foot musculature (perhaps 6 weeks), and run barefoot frequently, perhaps daily, to sustain this adaptation. However, once adapted, the foot is extremely durable.
...
The lower extremity is inherently durable, and, when unencumbered by footwear, it can endure running without signs of chronic overloading, because a vigilant system restrains shock. The use of modern athletic footwear, in addition to being inferior to older footwear in moderating shock during running, renders the lower extremity susceptible to injury because of design flaws introduced by the preoccupation with optimization of plantar comfort.
...
The obvious solution to the problem of chronic overloading in shod runners is to promote barefoot running."

From "Athletic footwear: unsafe due to perceptual illusions, Medicine and Science in Sports and Exercise, 23(2), 1991":
In summary, people who perform activities involving high impact while wearing footwear currently promoted as offering protection in this environment are at high risk for injury. Unlike the natural state (barefoot and natural surfaces), where impact is sensed and, through impact-moderating behavior, is maintained at a safe level, an inadequate understanding of the physiology of human impact control has resulted in footwear which makes chronic overloading inevitable by providing plantar comfort to the wearer even when enormous vertical impact is experienced.




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