A Fraction Too Much Friction

Why your feet need you to know this!

Rebecca Rushton
3 min readJan 9, 2015

There’s something you don’t get about friction.
And your feet need you to know this!

Think back to your last foot blister …
That one on the back of your heel
Under the ball of your foot
Or on your toe.

You treated it with a plaster …
You know, to stop that friction.

But I bet you think friction is rubbing.
It isn’t.

Friction is not rubbing!
Friction is about grip.
High friction means two surfaces grip together.
Low friction means they don’t … they’re slippery.

Friction levels are high in your shoe. They just are.
It means your skin grips your sock; and your sock grips your shoe.
They all grip together so your foot doesn’t slide around in your shoe.
But your bones are moving back and forth under your skin when you walk
And everything between skin and bone is pulled and stretched.
This pulling and stretching is what causes blisters.
We call it shear.
And it needs high friction to get anywhere near blister-causing.

You can stop blisters in the first place by cutting friction levels
This is the smart thing to do!
But if you miss the blister prevention boat and end up with a blister …

You’ll want to know how to heal that thing fast
And make it hurt less.

The answer is not a blister plaster.
The answer is to cut friction levels (ie: add something slippery)
Make it less grippy where your blister is.
Because if you don’t …
That pulling/stretching continues at the blister base while it’s trying to heal
Making it hurt more
And taking longer to heal.

Most people don’t know to do this.
(Because they’re caught up with thinking friction is rubbing).

But by making it less grippy (more slippery), just where the blister is
I can get runners back up and on their feet again
With even the worst blisters!

So how can you cut friction levels?
Pick one (or more) of these:
• Lubricants
• Powders
• Antiperspirants
• Tapes (maybe)
• Moisture-wicking socks
• Double socks
• Engo Patches

All of these cut friction levels.
Some work better than others.
In other words, some don’t get friction down low enough … for long enough.
And so when friction inevitably rises, everything grips together again.
And you’re back to square one.
But one or two work brilliantly, keeping friction very low for very long.

So if you’ve got a blister …
Make no mistake.
You still need to put a plaster over it.
To protect the fragile blister roof and painful blister base.
But to truly be effective at treating it
You will need to cut friction levels by adding a slippery surface.

So your blister can heal quickly and hurt less.

So figure out which of these friction-cutting strategies is right for you …
Right for your feet, your shoes, your event and your lifestyle
(As part of building your blister plan)
And have it handy for when you next get a blister.
You’ll thank me!

Image credit

Rebecca Rushton BSc(Pod)
www.blisterprevention.com.au

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