Athletic shoes need to be replaced after one year, whether or not they are worn, and after a certain amount of repetitive load is placed on them and wears them down.
The American Academy of Podiatric Sports Medicine advises replacing running or walking shoes after 300 to 500 miles of wear, and replacing aerobic, basketball, and tennis shoes after 45 to 60 hours of wear.
Athletic shoes should also be replaced if they show signs of unevenness when placed on a flat surface, display noticeable creasing, and/or when the heel counter breaks down.
|Dr. Adam Brown, Podiatrist, Carolina Foot Specialists|