Why do my running shoes wear out so quickly?
Shoes wear out over time, and for good reason. "The average person takes 5,000 to 15,000 steps a day," said Dr. Soot. "Each time you heel strike, you are stepping down with three times your weight and transferring some of that weight to the rest of your foot.
Basically, you should replace your running shoes every day300-500 miles. That's because at this point, the midsole cushioning on most shoes loses its elasticity and no longer cushions shock like it was new, which can have more impact on your muscles and joints.
If you keep track of the miles you run in each pair, most quality running shoes should last you a long timebetween 300 and 500 km- around four to six months for someone who runs 20 miles a week - although that number is lower in running shoes that are lighter and faster.
Your weight
The heavier you are, the more stress your shoes will take, potentially causing you to wear out faster than another runner who is much lighter than you.
"A treadmill is generally gentler on shoesthan the street, says Runner's World shoe guru Martyn R. Shorten, Ph.D. "The surface is less abrasive, allowing the outsole to last longer, and the added cushioning reduces the compression rate of the shoe's cushioning.
- You have new aches and pains.
- Your feet get particularly sore after a run.
- The treads are worn.
- The midsole feels hard.
- You keep getting blisters or brush burns.
Over time, your running shoes lose shock absorption, cushioning, and stability. Running in worn-out shoes increases the stress and strain on your legs and joints, which can lead to overuse injuries as well as general aches and pains.
There are signs of creases in the midsole, especially over the impact areas like the ball of the foot or the heel tab. Your toe box or shoe upper is torn. The soles of both shoes no longer have a symmetrical pattern of abrasion.
Just as rest days help your body recover from the rigors of running, shoes need rest days too. Alternating between two or more pairs of shoes allows the shoes to recover from the pounding. The foam can fully decompress between wears. This makes the shoes last longer than if you wore the same pair every day.
The last thing you want to do is try on a new pair of shoes two or three days before the race. I recommend you give ittwo weeksbecause it gives you enough time to break them in to make sure there aren't any seams out of place or anything odd about the shoe.