Repeated single-limb postural stability testing elicits a practice effect

Jonathan Warren, Anthony G. Schneiders, S. John Sullivan, Melanie L. Bell

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Objective: To document the effects of repeated testing on the single-leg stance balance task. Design: Single cohort repeated measures. Setting: Laboratory in an educational institution. Subjects: Thirty-two healthy males and females. Outcome measure: The number of errors (deviations from the required posture) during each 20-s trial summed over the eight conditions recorded on six occasions. Results: There was a statistically significant (p=.0013) decrease in the number of errors recorded over the six sessions, from 26.8 (95% CI: 23.1-30.5) to 19.7 (95% CI: 16.3-23.1). Linear regression confirmed a systematic decrease of 1.5 errors per session on average (95% CI: 1.0-1.9; p<.0001). Conclusion: The decreased number of errors (increased performance) with repeated testing alerts clinicians to the need for care when using this test protocol to measure rehabilitation interventions.

Original languageEnglish (US)
Pages (from-to)185-190
Number of pages6
JournalPhysical Therapy in Sport
Issue number4
StatePublished - Nov 2006


  • Balance
  • Measurement
  • Practice effects
  • Single-leg stance

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation


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