Weak knees - literally

Tamyka,
I didnt expect such a detailed reply. I always thought my case was
rather lost. Didnt think there was any real solution. Thanks for that.
Will follow it up.
BTW I dont have weak arches. My feet are flat, fullstop. Been like
that since I was a kid. Strange because as a kid, I was a very strong
sprinter and the fastest (100metres) for my age group in the old
country! Now all I do is blow the odd roadie off along Anzac Bridge on
my very unsportie, unroadie bike.
Thanks again.