In reply to lnn:
> Agreed. But many people new to the mountains may simply have weak feet and ankles due to their spending most/all of their time on flat engineered surfaces that demand little in the way of ankle strength to maintain stability.
Generally, the problem in your scenario is not one of weakness, but of proprioceptive deficit-the neuromuscular system at the relevant joints is not able to respond appropriately to challenges to balance.
So, yes, paced and graded challenges could rectify the deficit of a willing and motivated individual with otherwise normal function who has not 'found their feet'.
>.. Weak ankles are almost certainly trainable, damaged/injured ankles may not be, though I challenge your dismissal of re-hab.
An an NHS physio, I can assure you I don't dismiss rehab.
Sometimes things are weak because they are painful, pain inhibiting the muscle action. Pain is not always well controlled.
sometimes the weakness comes from nerve damage.
In both scenarios, external support, whether a walking stick, insoles, or supportive footwear, has a role to play.
>Everything can be strengthened, regardless of it's current state, and that strength will always improve function to some degree.
Your foot and ankle are (or should be ) wonderfully dynamic, their joints and ligaments able to respond to perturbations in balance by sending signals to the brain to get the muscles firing and achieve balance. As stated, you can strengthen muscles where pain doesn't inhibit, or nerve damage curtail it. The question remains though, can you use the strengthened muscles to improve balance? Ligamentous laxity, congenital or traumatic, will create a proprioceptive deficit. Sure, you can try and get it as good as you can with proprioceptive training, but some defict will likely persist. Since we're considering challenging terrain, it's probably wise to consider some external support rather than risk early OA form joints pushed to their limits.
And as for intrinsic foot types, pronators, supinators etc, I've yet to see a middle aged adult who corrected this without suitable supportive footwear. Similarly, the heavy footfallers tend to remain so. Fellrunners are therefore self selected for minimally constraining foot wear.
Post edited at 19:13