Find out when you should buy new sneakers--and why you shouldn't toss your old pair quite yet
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Penny pinching on new sneakers is going to cost you. Exercising an old shoes can cause plantar fasciitis, an inflammation of the tissue band connecting the heel to the toe. You should replace your shoes every 350 to 500 miles. But before you throw them away, put your years to good use. Take a look at where they’ve become worn. If you see excessive wear on the outside edges of the shoe, you’re a supinator and you don’t roll your ankles inward enough. You should look for a well-cushioned shoe to avoid stress fractures. If the heel and the ball of the foot are especially worn, you’re an overpronator and well your feet too far inward as you walk. Look for more arch support in your next shoe. If you’re not sure what you should get, bring your old kicks in to an athletic shoe store and the salesman will help you out. This sounds like mandatory shoe shopping to me. Check back tomorrow for another 60-second solution.

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