3-4 days free worldwide delivery

The Evolution of Foot Biomechanical Paradigms

by MASS4D® Prescription Orthotics November 27, 2016

Abstracts

By understanding the evolution of theoretical biomechanical models we can better appreciate today’s science and how to best utilise it for our patients’ benefit. Here are some key features of the most well-known theories:

Subtalar Neutral Theory:

- Subtalar axis is neutral, meaning neither pronated nor supinated
- Bisection of posterior calcaneus is vertical
- Metatarsophalangeal joint line is perpendicular to the bisector of posterior calcaneus
- Foot is rotated outward approximated 7-10 degrees

Sagittal Plane Facilitation Theory:

- Hallux limitus is a dysfunction for full propulsion
- Lack of full propulsion can lead to other pathologies such as plantar fasciitis, flat foot, chronic back pain, etc
- Hallux limitus results in full body compensation such as a propulsive gait with delayed heel lift- off, overload to lateral column of foot, flexed body position, etc


Offer your Patients a Custom Calibrated Insole with a 98% Patient Satisfaction Rate     know more


Tissue Stress Theory:

- Focuses on a kinetic view of the gait cycle
- Increased load on tissues causes deformation of change
- If damage occurs faster than healing, then symptoms occur

MASS Posture Theory:

- This theory is not single axis but looks at postural biomechanics
- States that a healthy medial arch is at maximal supination at mid-stance
- Mild inversion of the calcaneus at heel strike allows for anterior facet to be parallel to the ground, preventing over pronation
- 1st MTP must have full range of motion and accept approximately 60% of weight through gait

As seen above, science continues to advance our understanding of the human foot and its biomechanics. If we continue to apply these evolving, multidisciplinary, holistic-approach models we will improve the clinical outcomes of those we treat.

Copyright 2016 MASS4D® All rights reserved.


Offer your Patients a Custom Calibrated Insole with a 98% Patient Satisfaction Rate     know more


References:
  1. Daniel P. and Colda A. Foot Functioning Paradigms. Proc Rom Acad, Series B, 2012, 14(3), pp. 212–217
  2. Glaser E., Bursch D., Currie S. Theory, Practice Combine for Custom Orthoses. Biomechanics. 8(9):33-39, 2006.

Leave a comment

Comments will be approved before showing up.


Also in Clinicians Blog

Abstracts
Foot and ankle history and clinical examination: A guide to everyday practice

by MASS4D® Prescription Orthotics August 12, 2018

This review summarises the keys points in taking a full history and performing a systematic clinical examination for patients with foot and ankle problem.

Read More

Abstracts
A comparison of running kinetics in children with and without genu varus: A cross sectional study

by MASS4D® Prescription Orthotics August 07, 2018

The aims of the present study were to examine differences in three dimensional ground reaction forces (GRF) during running at preferred speed in boys with genu varus compared to age-matched healthy controls.

Read More

Abstracts
Foot Structure in Boys with Down Syndrome

by MASS4D® Prescription Orthotics July 29, 2018

The aim of this study was the analysis of selected features of the foot structure in boys with Down Syndrome (DS) versus their age- and gender-matched peers without the condition.

Read More