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Related Experiment Videos

Steps after stroke: capturing ambulatory recovery.

Marianne Shaughnessy1, Kathleen M Michael, John D Sorkin

  • 1Baltimore VA Geriatrics Research, Education, and Clinical Center, 10 N Greene St, Baltimore, MD 21201, USA. mshaughn@grecc.umaryland.edu

Stroke
|May 10, 2005
PubMed
Summary
This summary is machine-generated.

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Step activity monitoring (SAM) effectively tracks improvements in free-living walking after stroke rehabilitation, outperforming traditional measures. This technology captures recovery gains missed by standard assessments.

Area of Science:

  • Neurorehabilitation
  • Biomedical engineering
  • Clinical outcomes assessment

Background:

  • Two-thirds of stroke survivors experience mobility impairments affecting recovery.
  • Conventional measures like timed walks and Functional Independence Measure (FIM) fail to capture real-world ambulatory behavior.
  • Assessing free-living mobility is crucial for understanding stroke recovery.

Purpose of the Study:

  • To compare Step Activity Monitoring (SAM) with established instruments for assessing ambulatory recovery.
  • To evaluate SAM's effectiveness in the outpatient subacute stroke rehabilitation phase.
  • To determine if SAM can detect improvements missed by conventional measures.

Main Methods:

  • 11 stroke survivors were assessed post-discharge and 3 months later.

Related Experiment Videos

  • Measurements included FIM mobility subscale, SAM-derived daily steps, Stroke Impact Scale (SIS) mobility scores, and timed walks.
  • Data analysis focused on changes in these metrics over the rehabilitation period.

    • Main Results:

    • Significant improvement was observed in SAM-derived daily steps (80% mean gain, P=0.001).
    • No significant improvements were found in timed walks (P=0.4), FIM (P=0.08), or SIS mobility scores (P=0.3).
    • SAM demonstrated higher sensitivity in detecting ambulatory recovery.

    Conclusions:

    • Microprocessor-linked SAM is a sensitive tool for monitoring ambulatory recovery post-stroke.
    • SAM captures meaningful improvements in walking activity not detected by conventional outcome measures.
    • SAM offers a valuable, objective assessment of free-living ambulatory behavior in stroke survivors.