Hi Bryan
From a ”rehabilitation” perspective you have to know that there are 2 types of flat foot.
1. Structural flat foot – the foot is flat due to the bone structure
2. Functional flat foot – the foot is flat when standing on it due to poor muscle control and weakness of the muscles controlling the arch of the foot
To find out which type it is you can do the following test. Have your client sit on a table (so the feet are hanging free) and see what happens to the arch of the foot. If the person has an arch while sitting but not while standing it is a function flat foot. If the foot arch is flat while sitting on the table it is a structural flat foot.
If your client has a functional flat foot it is very reasonable to think that he/her will train his/hers arch muscles from barefoot running and thereby get rid of the flat foot. If it is a structural flat foot nothing much will happen to the arch from barefoot running since it´s a structural problem.
If the problem is functional your client will gain great benefit from also doing static single leg balance training (on the ground – no balance board) to help stabilize the foot and get the arch muscles working. Be aware of not progressing barefoot running to fast since your clients feet are in a “bad shape” - if it´s a functional flat foot
Have a great day
Sincerely
Casper Yde Haastrup
Sports Physiotherapist ∙ CHEK level 2 ∙ HLC level 2
