Vol. 40 No. 1, January/February 2003
Pages 19 — 26
Reliability of measures of gait performance and oxygen consumption with stroke survivorsInácio Teixeira da Cunha-Filho PT, PhD; Helene Henson, MD; Sharmin Wankadia, PT, MS; Elizabeth J. Protas, PT, PhD, FACSMPhysical Therapy Department, UNIBH Minas Grerais, Brazil; Department of Physical Medicine and Rehabilitation, Houston Veterans Affairs Medical Center, Houston, TX; School of Physical Therapy, Texas Womens University, Houston, TX; Department of Physical Therapy, University of Texas Medical Center, Galveston, TX; Rehabilitation Research and Development Center of Excellence on Healthy Aging with Disabilities, Houston Veterans Affairs Medical Center, Houston, TX
Abstract — This study assessed the reliability of gait performance with concurrent measures of oxygen consumption (VO2) in stroke survivors (SS). Nine male SS (60.00 ± 15.08 yr) had a recent history of stroke (44.56 ± 51.35 days since the stroke) and were receiving rehabilitation. Four had a right cerebrovascular accident (CVA), and five had a left CVA. Subjects walked without assistance, although three used a single cane to complete the test. Within 30 minutes, subjects completed two trials of a 5 min walk while walking back and forth on a 5 m walkway wearing a portable gas analyzer to collect samples of gases. The intraclass correlation coefficient (ICC) was used to assess reliability. The ICC for gait energy expenditure, walk distance, gait speed, and gait energy cost were 0.64, 0.97, 0.95, and 0.97, respectively. Assessment of gait performance with concurrent measures of VO2 is a reliable procedure with SS.
Key words: gait performance, oxygen consumption, reliability, stroke.