foot pronation

[Maryam Hajizadeh]

I wonder whether anyone has a good reference for me to show the contribution of foot eversion, abduction and dorsiflexion in foot pronation. I know most papers report the rearfoot eversion to represent foot pronation. However, I want to see whether there is any specific proportion of all the three components (eversion, abduction and dorsiflexion) in making final pronation. For example, if I want to simulate 30 degrees of pronation, which values of rotation on each plane I should apply?

Any comments would be appreciated.
Thanks,
Maryam

[Thomas M. Greiner]

Re: foot pronation

As a response to this question may I suggest the following:

2007 Greiner, TM. The Jargon of Pedal Movement. Foot and Ankle International 28:109-125

From this paper you will see that the question you asked has no definitive answer, because there is no agreed upon definition of foot pronation.

[Petcu Daniel]

Re: foot pronation

Maybe it could be of help:
Fischer KM, Willwacher S, Arndt A, Brüggemann GP, Calcaneal adduction and eversion are coupled to talus and tibial rotation, J Anat. 2018 Mar 26. doi: 10.1111/joa.12813.

https://www.ncbi.nlm.nih.gov/pubmed/29582433

Abstract
The purpose of this study was to quantify isolated coupling mechanisms of calcaneal adduction/abduction and calcaneal eversion/inversion to proximal bones in vitro. The in vitro approach is necessary because in vivo both movements appear together, making it impossible to determine the extent of their individual contribution to overall ankle joint coupling. Eight fresh frozen foot-leg specimens were tested. Data describing bone orientation and coupling mechanisms between segments were obtained using bone pin marker triads. The bone movement was described in a global coordinate system to examine the coupling between the calcaneus, talus and tibia. The strength of coupling was determined by means of the slope of a linear least squares fit to an angle-angle plot. The coupling coefficients in the present study indicate that not only calcaneal eversion/inversion (coupling coefficient: 0.68 ± 0.15) but to an even greater extent calcaneal adduction/abduction (coupling coefficient: 0.99 ± 0.10) was transferred into talus and tibial rotation, highlighting the relevance of calcaneal adduction for the overall ankle joint coupling. The results of this study present the possibility that controlling calcaneal adduction/abduction can affect talus and tibial rotation and therefore the possible genesis of overuse knee injuries.