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metadata language: English

Dynamic Corrective Force Device: A Balance Measure for Amputees

Version
V0
Resource Type
Dataset : clinical data
Creator
  • Johansson, Jennifer (Liberating Technologies, Inc.)
  • Kelly, Craig (Liberating Technologies, Inc.)
  • King, Carlton (Liberating Technologies, Inc.)
  • Rozell, Brianna (Liberating Technologies, Inc.)
  • Messer, Conor (Liberating Technologies, Inc.)
  • Buijs, Rudolf (Liberating Technologies, Inc.)
  • Delph, Michael (Liberating Technologies, Inc.)
  • D'Andrea, Susan (Providence VA Medical Center)
  • Wheeler, Jason (Sandia National Laboratories)
Publication Date
2020-05-18
Funding Reference
  • Congressionally Directed Medical Research Programs (CDMRP)
    • Award Number: W81XWH-15-1-0542
Free Keywords
Balance; Amputee; Limb Difference; Limb Absence; IMU; Insoles; Center of Pressure; Center of Gravity; Gait; Dynamic Balance; Prosthetic Foot; Xsens; Motion Capture; Level Walking
Description
  • Abstract

    The loss of balance is a significant problem for those who have undergone lower-limb amputations. Studies have shown that 52.4% of lower-extremity amputees have reported falling in the previous year, and 66% of above-knee amputees report falling annually, which is twice the rate of able-bodied adults over the age of 65. Given this, it’s important to select the most appropriate components for each prosthetic device to maximize function while optimizing balance and stability to ultimately reduce the patient’s risk of falls. Therefore, we are developing a tool to provide quantitative measures of balance to the clinician to aid in the selection of prosthetic feet and other components to optimize a patient’s stability and functional needs.
Temporal Coverage
  • 2018-01-01 / 2019-12-31
    Time Period: Mon Jan 01 00:00:00 EST 2018--Tue Dec 31 00:00:00 EST 2019
  • 2018-01-01 / 2019-12-31
    Collection Date(s): Mon Jan 01 00:00:00 EST 2018--Tue Dec 31 00:00:00 EST 2019
Geographic Coverage
  • Northeastern United States
Sampled Universe
Adults with a below-knee limb absence who use a prosthetic leg.
Sampling
The order of prosthetic feet (Celsus or Horizon) walked on was randomized for every subject.
Collection Mode
  • other;

    Motion data was collected on prosthetic leg users with a below-knee limb difference during level walking at a self selected walking speed. Data was collected to build a model with inertial measurement unit (IMU) sensors and pressure sensing insoles. This model was developed to create a tool to provide quantitative measures of balance to the clinician to aid in the selection of prosthetic feet and other components to optimize a patient’s stability and functional needs.


    One set of subjects (PVA) had data collected in the PVA Gait and Motion and Analysis Laboratory with a Qualysis Motion Capture System and 2 force plates alongside 16 Xsens IMU's and custom pressure sensing insoles developed by Sandia National Laboratories.
    Another set of subjects (LTI) had data collected with just 12 Xsens IMU's and custom pressure sensing insoles developed by Sandia National Laboratories.
    This work was supported by the Office of the Assistant Secretary of Defense for Health Affairs under award number W81XWH-15-1-0542 through the Orthotics and Prosthetics Outcomes Research Program. Opinions, interpretations, conclusions and recommendations are those of the author and are not necessarily endorsed by the Department of Defense.

Availability
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Update Metadata: 2020-05-18 | Issue Number: 1 | Registration Date: 2020-05-18

Johansson, Jennifer; Kelly, Craig; King, Carlton; Rozell, Brianna; Messer, Conor et. al. (2020): Dynamic Corrective Force Device: A Balance Measure for Amputees. Version: V0. ICPSR - Interuniversity Consortium for Political and Social Research. Dataset. https://doi.org/10.3886/E119449