Clinically meaningful change in stair negotiation performance in older adults

Mooyeon Oh-Park, Subashan Perera, Joe Verghese

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Stair negotiation is a key marker for independence among older adults; however, clinically meaningful change has not been established. Our objective was to establish the values of clinically meaningful change in stair negotiation time using distribution- and anchor-based approaches.Study participants were 371 community residing older adults (age. ≥. 70) in the Einstein Aging Study with time to ascend and descend 3 steps measured at baseline and at one-year follow-up. Anchor-based estimates were obtained using functional decline (defined as one-point increment in disability score) and change in self-reported walking ability over the one-year follow-up period. Small, moderate, and large meaningful change estimates were 0.28, 0.71, and 1.15. s for stair ascent time (0.31, 0.78, and 1.25. s for stair descent time) using the distribution-based approach of effect size. The estimates of meaningful decline range from 0.47 to 0.53. s for stair ascent time (0.33-0.53. s for stair descent time) using the anchor-based approach. The estimates of meaningful improvement were smaller (0.13-0.18. s for stair ascent, 0.06-0.15 for stair descent) compared to those for decline. Based on general consistency between distribution- and anchor-based approaches, preliminary criteria suggested for stair negotiation time is 0.5. s for meaningful decline and 0.2. s for meaningful improvement.

Original languageEnglish (US)
Pages (from-to)532-536
Number of pages5
JournalGait and Posture
Volume36
Issue number3
DOIs
StatePublished - Jul 1 2012

Keywords

  • Aged
  • Meaningful change
  • Stair negotiation

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

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