Campus Units

Kinesiology

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

7-28-2021

Journal or Book Title

Journal of Biomechanical Engineering

Volume

BIO-21-1180

DOI

10.1115/1.4051924

Abstract

The stress experienced by the tibia has contributions from the forces and moments acting on the tibia. We sought to quantify the influence of running grade on internal tibial forces and moments. Seventeen participants ran at 3.33 m/s on an instrumented treadmill at 0°, ±5°, and ±10° while motion data were captured. Ankle joint contact force was estimated from an anthropometrically-scaled musculoskeletal model using inverse dynamics-based static optimization. Internal tibial forces and moments were quantified at the distal 1/3rd of the tibia, by ensuring static equilibrium with all applied forces and moments. Downhill running conditions resulted in lower peak internal axial force (range of mean differences: -9 to -16%, p<0.001), lower peak internal anteroposterior force (-14 to -21%, p<0.001), and lower peak internal mediolateral force (-14 to -15%, p<0.001), compared to 0° and +5°. Furthermore, downhill conditions resulted in lower peak internal mediolateral moment (-11 to -21%, p<0.001), lower peak internal anteroposterior moment (-13 to -14%, p<0.001), and lower peak internal torsional moment (-9 to -21%, p<0.001), compared to 0°, +5°, and +10°. The +10° condition resulted in lower peak internal axial force (-7 to -9%, p<0.001) and lower peak internal mediolateral force (-9%, p=0.004), compared to 0° and +5°. These findings suggest that downhill running may be associated with lower tibial stresses than either level or uphill running.

Comments

This accepted article is published as Bagaley, M., Derrick, T.R., Vernillo, G., Millet, G.Y., Edwards, W.B., Internal Tibial Forces and Moments During Graded Running. Journal of Biomechanical Engineering. July 28 2021. Paper No: BIO-21-1180;Doi: 10.1115/1.4051924. Posted with permission.

Copyright Owner

ASME - The American Society of Mechanical Engineers

Language

en

File Format

application/pdf

Published Version

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