Do Shoes Expire? The Experts Say “Yes”!
The National Institute of Health (NIH) recommends new running shoes every 300 miles. Your running shoes lose shock absorption, cushioning, and stability over time. Continuing to run in worn-out running shoes increases the stress and impact on your legs and joints, which can lead to overuse injuries.
At 150 miles, buy a new pair of shoes and start rotating them into your runs and workouts. For people who participate in cross-fit type classes, one class is equivalent to running between 5 and 10 miles worth of wear on your shoes. Doing 3 classes per week, a new pair of shoes is recommended every 3-5 months.
According to an NIH study, using multiple different styles of shoes can lead to a variation of the load applied to the musculoskeletal system and prevent running-related injuries. Therefore, it is best to be actively using two or more different kinds of shoes for your runs and workouts.
If you are close to that 150 mile mark and it is time for you to look for a new pair of shoes, it is recommended that you not automatically purchase the same exact style of shoes because your needs may have changed. As you run or participate in fitness classes, your gait will not remain static. Your weight may fluctuate, you may have a minor injury, your muscles transform, and your tissue elasticity also changes. In addition to all of these changes your body may experience, footwear technology is constantly progressing and there may be new models that will better suit your individual body and cadence. For all of these reasons, we highly recommend having a new GaitView Video Analysis and fitting before every purchase.
When in doubt, our motto is that it is ALWAYS a good time to buy a new pair of shoes!