Mobile and Remote Monitoring of Seating Pressure for Wheelchair Users With SCI

June 13, 2019 updated by: Melissa M. Morrow, Ph.D., Mayo Clinic
This study will examine two interventions to increase weight shifts, overall trunk movement, and self-efficacy related to pressure ulcer prevention in wheelchair users with a spinal cord injury (SCI).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Participants will use a mobile seat interface pressure mapping system that gives them live, real-time, visual feedback on the distribution of pressure between them and their seat cushion. This type of feedback works as a compensatory strategy for lack of sensation and allows the individual to visually observe pressure distribution they are not able to feel. Additionally, the participants will be provided with structured pressure ulcer prevention education, grounded in the principles of social cognitive theory, regarding pressure ulcer risk and use of weight shifts.

The pressure mapping system, which will be used during training, provides virtual modeling of the desired outcome (reduced pressure) and is an important part of the education module.

The findings of this study will inform clinicians and investigators of whether use of mobile seat interface pressure mapping as a compensatory-based intervention has a positive impact on trunk movement and self-efficacy for completing weight shifts in wheelchair users who lack sensation. Another contribution of this work is an exploration of the relationship between self-efficacy and movement in wheelchair users.

Study Type

Interventional

Enrollment (Actual)

19

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Individuals with a spinal cord injury (C4 and below, traumatic or non-traumatic, with onset greater than 12 months at enrollment)
  • Individuals who use a wheelchair as their primary form of mobility
  • Individuals who are willing to participate and able to make 2 visits to the Mayo Clinic in Rochester, MN

Exclusion Criteria:

  • Documented active pressure ulcer of any stage at initiation of study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Intervention
Two interventions will be provided. The first intervention is a structured education regarding pressure ulcer prevention through weight shifts at start of study. The second intervention is the use of a mobile seat interface pressure map (IPM), which will occur during two intervention phases.
Behavioral: Structured Pressure Ulcer Prevention Education
Structured education for performance weight shift maneuvers and pressure ulcer prevention will occur during the initial visit for each subject. The education method used aligns with principles of the social cognitive theory to facilitate learning. The purpose in providing the education is to ensure all of the participants receive uniform instruction in how to perform weight shifts and to facilitate understanding of the importance of completing them as a protective measure against pressure ulcer development. Because each participant will come into the study at varying levels of understanding about pressure ulcer risk and knowledge of how to complete weight shift maneuvers, the education component is critical to ensure all participants are provided with the same information in the same way.
Other: Mobile Seat Interface Pressure Mapping System (IPM)
This mobile IPM system was designed to provide visual information about seat interface pressure distribution to compensate for lack of sensation on the sitting surface. This variable will be toggled on and off between the intervention and control phases of the study. The participants will have access to the visual feedback while learning how to complete weight shift maneuvers at the initial visit and then again at home during the intervention phases (weeks 2 and 4). During the control phases (weeks 1 and 3), they will not have access to the visual feedback from the pressure map

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Trunk Movement
Time Frame: For each phase and session combination (A1, B1, A2, B2), the daily values will be averaged over the 7 day collection period for one representative daily percentage of trunk active movement.
The primary outcome variable, trunk movement, will be defined by the percentage of the day with active trunk movement.
For each phase and session combination (A1, B1, A2, B2), the daily values will be averaged over the 7 day collection period for one representative daily percentage of trunk active movement.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total Vector Magnitude of Movement
Time Frame: For each phase and session combination (A1, B1, A2, B2), the daily values will be averaged over the 7 day collection period for one representative daily percentage of trunk active movement.
The vector magnitude for each second of data during wear-times will be classified as a period of activity or inactivity.
For each phase and session combination (A1, B1, A2, B2), the daily values will be averaged over the 7 day collection period for one representative daily percentage of trunk active movement.
Forward and Lateral Tilt
Time Frame: For each phase and session combination (A1, B1, A2, B2), the daily values will be averaged over the 7 day collection period for one representative daily percentage of trunk active movement.
Forward and lateral tilt will be assessed with the raw triaxial accelerometer data by determining the angles between gravity and the off-axes
For each phase and session combination (A1, B1, A2, B2), the daily values will be averaged over the 7 day collection period for one representative daily percentage of trunk active movement.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Mayo Clinic

Collaborators

National Institute on Aging (NIA)
University of Minnesota

Investigators

  • Principal Investigator: Melissa MB Morrow, PhD, Mayo Clinic
  • Principal Investigator: Tamara L Vos-Draper, PhD, University of Minnesota

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 14, 2017

Primary Completion (Actual)

September 11, 2017

Study Completion (Actual)

September 11, 2017

Study Registration Dates

First Submitted

June 11, 2019

First Submitted That Met QC Criteria

June 13, 2019

First Posted (Actual)

June 14, 2019

Study Record Updates

Last Update Posted (Actual)

June 14, 2019

Last Update Submitted That Met QC Criteria

June 13, 2019

Last Verified

June 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 16-007531
  • 1R21AG050640-01A1 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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