Journal
JOURNAL OF THE AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS
Volume 20, Issue -, Pages S42-S47Publisher
AMER ACAD ORTHOPAEDIC SURGEONS
DOI: 10.5435/JAAOS-20-08-S42
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Funding
- Military Amputee Research Program
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Few established measures allow effective quantification of physical performance in severely injured service members. We sought to establish preliminary normative data in 180 healthy, active-duty service members for physical performance measures that can be readily implemented in a clinical setting. Interrater and test-retest reliability and minimal detectable change (MDC) values were also determined. Physical performance testing included self-selected walking velocity on level and uneven terrain, timed stair ascent, the sit-to-stand five times test, the four-square step test, and the 6-minute walk test. Data analysis included descriptive statistics, intraclass correlation coefficients, and MDC. Interrater and test-retest reliability were excellent for all measures (intraclass correlation coefficients >0.75). MDC values for timed measures were <0.3 seconds for interrater comparisons and <1.5 seconds for between-day comparisons. Physical performance measures had a narrow range of normal performance and were reliable and stable between days.
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