Originally Posted by
StanSeven
No. You don't comprehend the differences between walking/running and cycling and how flat feet affect the motions. Walking and running (for most people) involves a movement where you land on your heel, shift weight towards the ball of your footand across the ball to your big toe where you push off. When that movement is exagerated and the foot rolls too much to the inside, it's called over-promation. When the weight stays on the outside of the fooot, especially when you might land more towards the ball, it's called supanation.
Cycling doesn't involve that movement for most people. You press down on the ball of your foot and the foot noraml just sits there.
Now if your foot moves and results in pain/discomfort, that needs corrected. A pediatrist, and one specializing in sports and specifically cycling, can help. Wedges, inserts, or custom orthodics is usually the fix.
Again, I don't think you get the point of the thread. I am not going to argue scientifically how the foot works - that is above my pay grade. I am interested in helping cyclists with foot pain try to mitigate that pain and find the reasons why the pain exists. To say that the foot bears no weight in cycling is just not correct. You may very well be right that the ball of the foot takes the brunt, but that is elementary for clipless riders.
The only way this thread deals with walking/running is from the experiences of the posters in an effort to help other cyclists. It is not a debate on how the foot works.