Obesity is a strong risk factor for knee osteoarthritis (OA) [1], but the mechanism of OA initiation associated with obesity is not clear. Increases in ambulatory knee joint load due to obesity have been implicated as a cause of increased OA incidence, since an increased adduction moment has been associated with the severity and progression of medial compartment OA [2]. However, previous work has not consistently shown increases or decreases in the adduction moment in the obese. Step width and toe-out reduce the adduction moment [3] and are increased in the obese [4], suggesting that the adduction moment could also be reduced in the obese. Furthermore, obesity may be associated with knee malalignment, which may also alter the adduction moment. However, the cumulative effect of these gait alterations on the adduction moment is unclear, given the increased risk of medial knee OA in the obese. Understanding this interaction is important in understanding the link between obesity and knee OA.
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ASME 2012 Summer Bioengineering Conference
June 20–23, 2012
Fajardo, Puerto Rico, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-4480-9
PROCEEDINGS PAPER
Valgus Knee Alignment, Not Step Width or Toe-Out Cause Reduced Knee Adduction Moment in the Healthy Obese Available to Purchase
Katerina Blazek,
Katerina Blazek
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
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Jessica Asay,
Jessica Asay
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
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Jennifer Erhart-Hledik,
Jennifer Erhart-Hledik
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
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Thomas Andriacchi
Thomas Andriacchi
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
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Katerina Blazek
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
Jessica Asay
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
Jennifer Erhart-Hledik
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
Thomas Andriacchi
Stanford University, Stanford, CA
VA Bone and Joint Rehabilitation R&D Center, Palo Alto, CA
Paper No:
SBC2012-80375, pp. 235-236; 2 pages
Published Online:
July 19, 2013
Citation
Blazek, K, Asay, J, Erhart-Hledik, J, & Andriacchi, T. "Valgus Knee Alignment, Not Step Width or Toe-Out Cause Reduced Knee Adduction Moment in the Healthy Obese." Proceedings of the ASME 2012 Summer Bioengineering Conference. ASME 2012 Summer Bioengineering Conference, Parts A and B. Fajardo, Puerto Rico, USA. June 20–23, 2012. pp. 235-236. ASME. https://doi.org/10.1115/SBC2012-80375
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