Forefoot angle at initial contact determines the amplitude of forefoot and rearfoot eversion during

NewsBot · Jul 2, 2014

Members do not see these Ads. Sign Up.
Forefoot angle at initial contact determines the amplitude of forefoot and rearfoot eversion during running
Gail M. Monaghan, Wen-Hao Hsu, Cara L. Lewis, Elliot Saltzman, Joseph Hamill, Kenneth G. Holt
Clinical Biomechanics; Available online 26 June 2014

Highlights
•An extrinsic non-weight bearing clinical measure of forefoot and rearfoot angles can predict, respectively, the forefoot and rearfoot angles at ground contact.
•the forefoot contact angle was associated with the amplitudes of both rearfoot and forefoot eversion during stance
•rearfoot contact angle was not associated with rearfoot or forefoot kinematics
Click to expand...

Background
Clinically, foot structures are assessed intrinsically – relation of forefoot to rearfoot and rearfoot to leg. We have argued that, from a biomechanical perspective, the interaction of the foot with the ground may influence forces and torques that are propagated through the lower extremity. We proposed that a more appropriate measure is an extrinsic one that may predict the angle the foot makes with ground at contact. The purposes of this study were to determine if the proposed measure predicts contact angles of the forefoot and rearfoot and assess if the magnitude of those angles influences amplitude and duration of foot eversion during running.

Methods
With the individual in prone, extrinsic clinical forefoot and rearfoot angles were measured relative to the caudal edge of the examination table. Participants ran over ground while frontal plane forefoot and rearfoot contact angles, forefoot and rearfoot eversion amplitude and duration were measured. Participants were grouped twice, once based on forefoot contact inversion angle (moderate < median and large > median) and once based on rearfoot contact inversion angle (moderate < median and large > median).

Findings
The forefoot and rearfoot extrinsic clinical angles predicted, respectively, the forefoot and rearfoot angles at ground contact. Large forefoot contact angles were associated with greater amplitudes (but not durations) of forefoot and rearfoot eversion during stance. Rearfoot contact angles, however, were associated with neither amplitudes nor durations of forefoot and rearfoot eversion.

Interpretation
Possible mechanisms for the increased risk of running injuries associated with large forefoot angles are discussed.
Click to expand...

Kevin Kirby · Jul 2, 2014

NewsBot said: ↑

Forefoot angle at initial contact determines the amplitude of forefoot and rearfoot eversion during running
Gail M. Monaghan, Wen-Hao Hsu, Cara L. Lewis, Elliot Saltzman, Joseph Hamill, Kenneth G. Holt
Clinical Biomechanics; Available online 26 June 2014
Click to expand...

Maybe frontal plane forefoot measurements are important in determining the amount of subtalar joint pronation during running?

NewsBot The Admin that posts the news.

Kevin Kirby MVP

Forefoot angle determines duration and amplitude of pronation during walking

Training Program for Orthopedic Residents in Forefoot Osteotomy Skills:

Malpractice claims in forefoot surgery

Forefoot Varus Wedge for Hallux Valgus

Forefoot Injuries in Athletes: Integration of the Movement System

Are rearfoot or forefoot procedures more painful?

Plantar forefoot pain: ultrasound findings before and after treatment with custom-made foot orthoses

Share This Page