Development of a Robotic Assembly for Analyzing the Instantaneous Axis of Rotation of the Foot Ankle Complex
Joint Authors
Di’Angelo, Denis
Salb, Kelly N.
Wido, Daniel M.
Stewart, Thomas E.
Source
Applied Bionics and Biomechanics
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-23
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Ankle instantaneous axis of rotation (IAR) measurements represent a more complete parameter for characterizing joint motion.
However, few studies have implemented this measurement to study normal, injured, or pathological foot ankle biomechanics.
A novel testing protocol was developed to simulate aspects of in vivo foot ankle mechanics during mid-stance gait in a human cadaveric specimen.
A lower leg was mounted in a robotic testing platform with the tibia upright and foot flat on the baseplate.
Axial tibia loads (ATLs) were controlled as a function of a vertical ground reaction force (vGRF) set at half body weight (356 N) and a 50% vGRF (178 N) Achilles tendon load.
Two specimens were repetitively loaded over 10 degrees of dorsiflexion and 20 degrees of plantar flexion.
Platform axes were controlled within 2 microns and 0.008 degrees resulting in ATL measurements within ±2 N of target conditions.
Mean ATLs and IAR values were not significantly different between cycles of motion, but IAR values were significantly different between dorsiflexion and plantar flexion.
A linear regression analysis showed no significant differences between slopes of plantar flexion paths.
The customized robotic platform and advanced testing protocol produced repeatable and accurate measurements of the IAR, useful for assessing foot ankle biomechanics under different loading scenarios and foot conditions.
American Psychological Association (APA)
Salb, Kelly N.& Wido, Daniel M.& Stewart, Thomas E.& Di’Angelo, Denis. 2016. Development of a Robotic Assembly for Analyzing the Instantaneous Axis of Rotation of the Foot Ankle Complex. Applied Bionics and Biomechanics،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1094825
Modern Language Association (MLA)
Salb, Kelly N.…[et al.]. Development of a Robotic Assembly for Analyzing the Instantaneous Axis of Rotation of the Foot Ankle Complex. Applied Bionics and Biomechanics No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1094825
American Medical Association (AMA)
Salb, Kelly N.& Wido, Daniel M.& Stewart, Thomas E.& Di’Angelo, Denis. Development of a Robotic Assembly for Analyzing the Instantaneous Axis of Rotation of the Foot Ankle Complex. Applied Bionics and Biomechanics. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1094825
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1094825