Foot pronation contributes to altered lower extremity loading after long distance running

NewsBot · May 1, 2019

Members do not see these Ads. Sign Up.
Foot pronation contributes to altered lower extremity loading after long distance running
Qichang Mei et al
Front. Physiol. | doi: 10.3389/fphys.2019.00573

This study aimed to investigate the changes of foot postures, joint kinematics, moments and contact forces to the lower extremity after a 5k treadmill run, and analyze correlation of foot posture index with knee and ankle loading. Twenty recreational male heel strike runners participated in this study. All had history of running and free from lower extremity injuries or foot deformities. Foot posture, three-dimensional markers trajectories, ground reaction force and surface electromyography (EMG) were recorded pre and post 5k treadmill running with standard running shoes. Musculoskeletal modelling techniques from OpenSim were employed to calculate the joint kinematics, moments and contact forces. Simulated EMG activations were compared against experimental EMG signals to validate the model. One-dimensional statistical parametric mapping (SMP1d) package was used for statistical analysis. Hip moments and contact forces to joint increased significantly and temporally during initial contact and mid stance post 5k. Knee abduction moment and sup-inf contact force increased but extension moment decreased significantly and temporally. The significantly increased ankle plantarflexion moment and contact forces were observed temporally during stance. Foot posture index showed increased correlations with peak knee and ankle moments. Recreational male runners presented pronated foot postures after 5k treadmill running with neutral shoes. Changes of lower extremity angles, moments and contact forces during stance could integrate into etiological framework of loads magnitude and distribution to investigate the causation of running-related injuries.
Click to expand...

NewsBot · Nov 17, 2022

Dataset of lower extremity joint angles, moments and forces in distance running
QichangMei et al
Heliyon Volume 8, Issue 11, November 2022, e11517

This study presents a database of joint angles, moments, and forces of the lower extremity from distance running at a submaximal speed in recreational runners. Twenty recreational runners participated in two experimental sessions, specifically pre and post a 5k treadmill run, with a synchronous collection of markers trajectories and ground reaction forces for both limbs in walking and running trials. The raw data in C3D files could be used for musculoskeletal modelling. Extra datasets of joint angles, moments, and forces are presented ready-for-use in MAT files, which could be as reference for study of biomechanical alterations from distance running. Applying advanced data processing techniques (Machine Learning algorithms) to these datasets (C3D & MAT), such as Principal Component Analysis, could extract key features of variation, thus potentially being applied for correlation with accelerometric and gyroscope parameters from wearable sensors during field running. Dataset of multi-segmental foot could be another contribution for the investigation of foot complex biomechanics from distance running. The dataset from Asian males may also be used for population-based studies of running biomechanics.
Click to expand...

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

Hip-Focused Neuromuscular Exercises for Foot Pronation

The intrinsic foot muscles and overpronation

"Foot Pronation" White Paper

Assisting Foot Motion about the Pronation Axis

Foot pronation during walking is associated to the mechanical resistance of the midfoot joint

Foot pronation is associated with increased injury risk in runners

Effects of foot pronation on the lower limb sagittal plane biomechanics during gait

Share This Page