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(Stroke. 2005;36:1305.)
© 2005 American Heart Association, Inc.

Research Reports

Steps After Stroke

Capturing Ambulatory Recovery

Marianne Shaughnessy, PhD, CRNP; Kathleen M. Michael, PhD, RN; John D. Sorkin, MD, PhD Richard F. Macko, MD

From the Baltimore VA Geriatrics Research, Education, and Clinical Center (GRECC; M.S., K.M.M., J.D.S., R.F.M.), Maryland; University of Maryland School of Nursing (M.S.), Baltimore; and University of Maryland School of Medicine (K.M.M., J.D.S., R.F.M.), Baltimore.

Correspondence to Marianne Shaughnessy, PhD, CRNP, Baltimore VA GRECC, 10 N Greene St, (BT/18/GR), Baltimore, MD 21201. E-mail mshaughn{at}grecc.umaryland.edu

Background and Purpose— Nearly two thirds of stroke survivors have deficits impairing ambulatory recovery. Conventional mobility outcome measures such as timed walks and functional independence measure (FIM) do not quantify free-living ambulatory behavior. This study compared step activity monitoring (SAM) with established instruments to assess ambulatory recovery across the outpatient subacute stroke rehabilitation phase.

Methods— We measured FIM mobility subscale, SAM-derived daily steps, Stroke Impact Scale (SIS) mobility scores, and timed walks in 11 subjects after discharge from inpatient rehabilitation and again 3 months later.

Results— Significant improvement was measured in free-living step activity (mean gain 80%; P=0.001) but not with timed walks (P=0.4), FIM (P=0.08), or SIS mobility scales (P=0.3).

Conclusions— Microprocessor-linked SAM is a sensitive indicator of ambulatory recovery that measures improvements not captured by other conventional outcome instruments.

Key Words: outcome • stroke

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