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Related Experiment Video

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Development of a Virtual Reality Assessment of Everyday Living Skills
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Published on: April 23, 2014

The MAT-sf: clinical relevance and validity.

W Jack Rejeski1, Anthony P Marsh, Stephen Anton

  • 1Wake Forest University, Box 7868, Department of Health and Exercise Science, Winston-Salem, NC 27109. rejeski@wfu.edu.

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|May 21, 2013
PubMed
Summary

The mobility assessment tool-short form (MAT-sf) accurately measures mobility in older adults, correlating with physical performance and health conditions. This self-report tool enhances clinical utility for assessing mobility in aging populations.

Keywords:
Geriatric assessmentMAT-sfMobilityPhysical function

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Area of Science:

  • Gerontology
  • Clinical Biomechanics
  • Health Outcomes Research

Background:

  • Mobility measurement is critical for aging research and clinical practice.
  • The mobility assessment tool-short form (MAT-sf) is a novel self-report mobility measure utilizing video animations for enhanced accuracy.
  • Previous research highlights the need for validated tools to assess mobility in older adults.

Purpose of the Study:

  • To recalibrate items of the MAT-sf using a large dataset.
  • To evaluate the relationship between older patients' walking self-efficacy and MAT-sf scores, independent of 400-m walk time.
  • To assess the association of MAT-sf scores with body mass index and other clinical variables.

Main Methods:

  • Utilized baseline data from the Lifestyle Interventions and Independence for Elders Study.
  • Performed item recalibration on the MAT-sf.
  • Conducted regression analyses to examine shared variance between MAT-sf, 400-m walk time, and self-efficacy.
  • Analyzed correlations between MAT-sf scores and clinical variables including BMI, comorbidities, and the Short Physical Performance Battery.

Main Results:

  • Item recalibration confirmed the robustness of the MAT-sf scoring algorithm.
  • Both walking self-efficacy and 400-m walk time uniquely contributed to MAT-sf scores (p < .001).
  • MAT-sf scores showed inverse relationships with hypertension and arthritis (p < .001), were lowest with BMI ≥ 35 kg/m(2), and positively correlated with the Short Physical Performance Battery.
  • MAT-sf scores were inversely related to difficulties with activities of daily living (p < .001) and higher in men than women (p < .001).

Conclusions:

  • The study validates the MAT-sf as a reliable tool for assessing self-reported mobility in older adults.
  • Findings support the clinical utility of the MAT-sf for evaluating mobility in aging populations.
  • Future longitudinal analysis of MAT-sf data will further elucidate its predictive value for health outcomes.