Wearing in for a better workout

Published 10th November 2020 by mymo

Most shoe manufacturers will have some form of guidance on how long your running shoes should last. There are of course ways in which this will vary, and there are many ways to monitor your mileage too. You don’t have to confuse yourself with pen and paper calculations or the dreaded spreadsheet when they are options such as gear tracking on apps like Strava!

The time will eventually come around when you need to get new running shoes, and with the help of mymo you should be excited to take them for a spin, knowing they are the perfect running partner for you. The temptation might be there to put them on and get straight out there to take them for your first run together, but it’s always a good idea to break your running shoes in first. We are going to walk you through how and why wearing in can help you to work out.

They are going to feel firm

Chances are that you’ve been with your current trainers for some time and even if you have been wearing them in rotation with another pair (for example if you use a pair for faster running and a pair for longer slower runs) they will have probably done a fair bit of mileage. The older your shoes are, and how you have looked after them (or not) they will have certainly started to ‘give’ a little and may have even started to feel as comfy as your favourite slippers. New trainers are always firm when you first get them and the stiffness around the heel, upper and midsole will take a few runs to loosen off. Taking a few runs in them or 20-30 minutes each time will allow them to give and reduce your chances of getting a blister or a hot spot.

They might be slightly different

Even if you go for exactly the same shoe you always choose, moving between versions of the same model can throw up some differences. Some new versions of shoes may have a slightly different drop and even a few millimetres can make a difference to how your body copes with landing. Imagine having a different length of Achilles tendon every time you change your shoes- you are going to move differently, even if that’s only marginally. Taking time to adjust to even minor changes in height (drop) can be a game changer in preventing injury. Transition gradually to newer models by taking them on shorter runs in rotation with your existing trainers as you start to phase them out.

They might be more than slightly different

If mymo has suggested you make a change to a different type of shoe to one you are used to running in, it might take a while longer to transition. This is especially true if you are changing from a neutral to support shoe, or vice versa. Just as in the drop (height) of a shoe, support shoes often have medial posts built in that stop the foot from rolling inwards and may be built differently around the heel. Not only can these cause blisters and hot spots if you’re not used to them, but the slight change to your landing pattern can sometimes cause aching in the knees and ankles. Give yourself time to make the transition rather than immediately making the switch and taking them on a long run.

A note on racing shoes

Many racers such as those with carbon plates aren’t designed to last for as many miles as traditional running shoes, and often they lose that extra bounce that gives you a kick on race day the more they are used. Take time to wear them in in the same way as your other running shoes, but be aware they will take fewer miles to do this. We suggest wearing them for part of a few track or treadmill workouts and efforts leading up to race day to iron out any issues that may cause problems (e.g. rubbing, lacing etc), but keep them as box fresh as you can to get as much out of them on race day as you can!


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