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Related Experiment Video

Updated: Apr 6, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

Development and initial validation of the Seated Posture Scale.

Lelia Barks¹, Stephen L Luther, Lisa M Brown

¹Center of Innovation for Disability and Rehabilitation Research, James A. Haley Veterans' Hospital, Tampa, FL; and Rehabilitation Research and Development Service, Department of Veterans Affairs, Washington, DC;

Journal of Rehabilitation Research and Development

|August 1, 2015

Summary

This summary is machine-generated.

A new Seated Posture Scale (SPS) effectively assesses wheelchair posture in older adults. This validated tool aids research into posture

Keywords:

SPS Veteran elder geriatric long-term care posture reliability seat validity wheelchair

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Published on: November 11, 2022

Area of Science:

Rehabilitation Science
Gerontology
Biomedical Engineering

Background:

Posture significantly impacts health outcomes like eating, breathing, and speaking.
Research on wheelchair seated posture's effects is limited, primarily focusing on interface pressure, physical function, and safety.

Purpose of the Study:

To develop and validate a rapid, low-burden, paper-pencil assessment for wheelchair seated posture in research.
To evaluate the feasibility of using this assessment with older adults.

Main Methods:

Prospective design with a convenience sample of 49 older wheelchair users in a community living center.
Validated the Seated Posture Scale (SPS) using expert ratings (S-CVI), correlation with physical function (Barthel Index) and muscle tone (Modified Ashworth Scale), internal consistency (Cronbach alpha), and test-retest reliability.

Main Results:

The Seated Posture Scale (SPS) achieved an overall content validity score (S-CVI) of 0.744.
SPS scores positively correlated with physical function (r = 0.46) and negatively with muscle tone (r = -0.44), supporting construct validity.
High test-retest reliability (Pearson correlations 0.89–0.99) and acceptable internal consistency (Cronbach alpha 0.66) were observed.

Conclusions:

The Seated Posture Scale (SPS) demonstrates sufficient preliminary validity and reliability for evaluating wheelchair seated posture.
The SPS is suitable for use in outcomes research, particularly with older adult populations.