Rl. Blake et Hj. Ferguson, EFFECT OF EXTRINSIC REARFOOT POSTS ON REARFOOT POSITION, Journal of the American Podiatric Medical Association, 83(8), 1993, pp. 447-456
Twenty runners displaying abnormal subtalar joint pronation were selec
ted for this study, the purpose of which was to investigate the effect
s of extrinsic rearfoot posted orthoses on frontal plane rearfoot and
tibial position. Numerous temporal events were measured and compared f
or three different conditions: acrylic post, Birko post, and no post.
The results suggested that rearfoot posts have a somewhat limited func
tion in foot orthotic therapy and that the choice of posting material
is of limited functional value.