Validation of a novel kinematic based protocol to study foot and ankle biomechanics

Kelly N. Salb, Daniel M. Wido, Thomas E. Stewart, Denis Diangelo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel testing protocol was developed to simulate in vivo mechanics of the foot-ankle complex during early stance phase gait in a human cadaveric lower extremity model. A lower leg was mounted in a robotic testing platform with the tibia upright and foot flat on the baseplate. The axial force applied to the tibia was controlled as a function of the vertical ground reaction force (vGRF) set at half body weight (356N) and a 50% vGRF (178N) Achilles tendon load. The loading scenario was repetitively tested over 10° dorsiflexion and 20° plantarflexion in two specimens. Because the platform axes were controlled to within 2microns and 0.0002°, error in calculating the ankle instantaneous axis of rotation (IAR) was ±0.001mm. Mean axial tibia loads, vGRFs, and mean ankle IAR values were analyzed with an ANOVA and a Holm-Sidak post-hoc multiple comparisons test (P<0.05). Axial forces applied to the tibia were controlled to within ±2N of the target conditions with a maximum deviation of ±6N. Ankle IAR values were significantly different between dorsiflexion and plantarflexion. The customized robotic platform and advanced testing protocol can be programmed to simulate many different loading scenarios appropriate for studying foot biomechanics.

Original languageEnglish (US)
Title of host publicationProceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013
Pages145-146
Number of pages2
DOIs
StatePublished - Aug 5 2013
Event29th Southern Biomedical Engineering Conference, SBEC 2013 - Miami, FL, United States
Duration: May 3 2013May 5 2013

Publication series

NameProceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013

Other

Other29th Southern Biomedical Engineering Conference, SBEC 2013
CountryUnited States
CityMiami, FL
Period5/3/135/5/13

Fingerprint

Biomechanics
Kinematics
Robotics
Testing
Axial loads
Tendons
Analysis of variance (ANOVA)
Mechanics

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

Cite this

Salb, K. N., Wido, D. M., Stewart, T. E., & Diangelo, D. (2013). Validation of a novel kinematic based protocol to study foot and ankle biomechanics. In Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013 (pp. 145-146). [6525718] (Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013). https://doi.org/10.1109/SBEC.2013.81

Validation of a novel kinematic based protocol to study foot and ankle biomechanics. / Salb, Kelly N.; Wido, Daniel M.; Stewart, Thomas E.; Diangelo, Denis.

Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013. 2013. p. 145-146 6525718 (Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Salb, KN, Wido, DM, Stewart, TE & Diangelo, D 2013, Validation of a novel kinematic based protocol to study foot and ankle biomechanics. in Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013., 6525718, Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013, pp. 145-146, 29th Southern Biomedical Engineering Conference, SBEC 2013, Miami, FL, United States, 5/3/13. https://doi.org/10.1109/SBEC.2013.81
Salb KN, Wido DM, Stewart TE, Diangelo D. Validation of a novel kinematic based protocol to study foot and ankle biomechanics. In Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013. 2013. p. 145-146. 6525718. (Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013). https://doi.org/10.1109/SBEC.2013.81
Salb, Kelly N. ; Wido, Daniel M. ; Stewart, Thomas E. ; Diangelo, Denis. / Validation of a novel kinematic based protocol to study foot and ankle biomechanics. Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013. 2013. pp. 145-146 (Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013).
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