Podiatrist · Specialist in Biomechanics · Founder of VOLKAN
"Before seeking efficiency, the brain seeks safety. Only when it feels safe does it move freely again."
"It no longer hurts… but I still walk strangely"
A few months ago, a man came to the consultation who had suffered an ankle sprain almost a year earlier.
The ankle was no longer swollen.
He had regained mobility.
The strength was practically normal.
The clinical tests showed no significant injury.
However, he continued to walk cautiously.
Unbeknownst to him, he was putting less weight on that foot.
He avoided uneven terrain.
He went down the stairs more slowly.
And he always looked for a handrail when it was nearby.
It was not a conscious decision.
His brain continued to act as if danger was still present.
The brain does not easily forget what it considers a threat.
Our species has survived because the brain remembers experiences that could put us in danger.
If we once burned ourselves on fire, the next time we will approach it with more caution.
If we suffer a significant fall, the nervous system learns.
That learning has enormous value.
It protects us.
The problem arises when that protection remains active long after the risk has disappeared.
Then the movement stops responding to the present and starts responding to the memory.
Moving with fear is moving differently
Think about how you walk on a dry sidewalk.
Now imagine that same sidewalk is completely covered in ice.
Your body changes immediately.
The steps are shorter.
The knees remain somewhat more bent.
The arms slightly separate from the body.
The muscles increase their tension.
The speed decreases.
And all of that happens even before taking the first step.
Your anatomy has not changed.
The perception of safety has changed.
The brain modifies the strategy because it interprets that the context is different.
Trust is also biomechanical
There is a word that rarely appears in scientific books and yet, I see it every day in consultation.
Trust.
When a person starts to trust their body again, their way of moving changes.
The steps regain fluidity.
The oscillations become natural.
The breathing relaxes.
The movements stop being excessively controlled.
Not because the brain stops protecting.
But because it interprets that it no longer needs to do so with such intensity.
Trust does not eliminate biomechanics.
It is part of it.
What does this have to do with barefoot?
A lot.
Some people feel insecure simply by changing their shoes.
It’s completely normal.
The nervous system receives different stimuli.
The information coming from the foot changes.
The muscles work differently.
The brain needs time to build a new sense of security.
That’s why a progressive transition not only protects muscles and tendons.
It also allows the nervous system to gain confidence in that new pattern of movement.
It’s not just about adapting the tissues.
It’s also about adapting perception.
What I see every day in consultation
Often, the most important change doesn’t happen when a patient gains five degrees of mobility or increases a few pounds of strength.
It happens the day they stop looking constantly at the ground.
When they go down a curb again without thinking.
When they go out to walk without asking themselves if the pain will appear.
When they stop anticipating the problem with every step.
That day not only has the foot improved.
The relationship between the brain and movement has changed.
And that transformation often marks the true beginning of recovery.
What you can do starting today
If you’re recovering from an injury, try to observe something.
Don’t just ask:
"What can I do?"
Also ask yourself:
"What movements am I still avoiding out of fear?"
After, always with confidence and respecting the instructions of your healthcare professional, try to gradually reintroduce those movements.
Not to prove that you are not afraid.
But to give the brain new experiences that allow it to update its safety map.
The nervous system learns from both threats and positive experiences.
🔬 In a sentence
The brain modifies movement according to the level of safety it perceives, not just according to the state of the tissues.
The most important idea
Moving well does not only depend on having strong muscles or healthy joints.
It also depends on the nervous system trusting that the movement is safe.
That’s why recovering from an injury is not just about repairing a tissue.
It’s about helping the brain to abandon protective strategies that it no longer needs.
Biomechanics cannot be understood without perception.
And perception cannot be understood without context.
A question to reflect on
Think of a movement you have stopped doing since an injury.
Do you avoid it because your body can no longer do it… or because your brain is still not completely convinced that it is safe to try again?
In the next article…
So far we have talked about muscles, the nervous system, sensory information and emotions.
But there is a factor that silently influences all of them and that we often overlook.
Sleep.
Why after a bad night do we feel more clumsy?
Why do sensitivity to pain increase?
Why do our ability to adapt to loads decrease?
We will discover that sleeping is not simply resting. It is one of the moments when the brain reorganizes learning, regulates the perception of pain, and prepares the body to move again the next day.