When sneakers put you at risk: if your walking or running shoes are past their prime, your chance of injury increases - Fitness - Brief Article

Natural Health, May-June, 2003

WHEN IT COMES TO WORKING out, your comfy old sneaks won't cut it. Worn-out shoes don't properly absorb shock when you walk or run, which increases your risk of foot and ankle injuries, say experts. So replace your sneakers every two to three months if you run or walk on pavement for more than 20 miles a week, says Rock Positano, podiatry director at New York City's Hospital for Special Surgery. If you run or walk on pavement for fewer than 20 miles a week, or if you do most of your running and walking on soft surfaces like grass, a track, or a treadmill, replace your sneakers every four to six months.

3 Sneaker-Buying Tips

1. Buy running shoes (which offer more support) even if you're a walker.

2. If you walk or run daily, purchase two pairs and alternate them. Allowing sweaty sneakers to air out between workouts helps them retain their shape.

3. To get the right size, shop for footwear at the end of the day when your feet are slightly larger.