PMID- 30092204 OWN - NLM STAT- MEDLINE DCOM- 20191224 LR - 20200309 IS - 1532-821X (Electronic) IS - 0003-9993 (Print) IS - 0003-9993 (Linking) VI - 100 IP - 3 DP - 2019 Mar TI - Four-Meter Gait Speed: Normative Values and Reliability Determined for Adults Participating in the NIH Toolbox Study. PG - 509-513 LID - S0003-9993(18)30923-7 [pii] LID - 10.1016/j.apmr.2018.06.031 [doi] AB - OBJECTIVES: To establish reference values and determine test-retest reliability for usual and maximal 4-meter gait speed. DESIGN: Cross-sectional observational study. SETTING: Offices in 10 geographically dispersed cities in the United States. PARTICIPANTS: Men and women (N=1320), aged 18 to 85 years, enrolled in the National Institutes of Health Toolbox norming study. INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: Specifically used were data from men and women who were timed over 4 meters (after a static start) while walking at their usual and maximum speeds. Norms for usual and maximum gait speed were derived using data from 1320 participants. Test-retest reliability for 164 participants was described using paired t tests, intraclass correlation coefficients (ICCs), and minimal detectable changes (MDCs). RESULTS: Mean usual speed was 1.12 meters per second, whereas mean maximum speed was 1.61 meters per second. As a general linear model showed 4-meter gait speed to differ significantly according to gait condition (speed), sex, and age group; estimates of normal were calculated accordingly. The usual speed of 80- to 85-year-old women was lowest at 0.95 meters per second; the maximum speed of 18- to 29-year-old men was highest at 1.85 meters per second. Test-retest measures did not differ significantly, but the ICCs were only fair and the MDCs were high. CONCLUSIONS: Normative reference values provided herein may be helpful in interpreting measurements of 4-meter gait speed obtained from adult men and women. The limited reliability of the gait speed measurements, however, limits their usefulness in making judgments regarding change. CI - Copyright (c) 2018 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved. FAU - Bohannon, Richard W AU - Bohannon RW AD - Department of Physical Therapy, Campbell University, Buies Creek, NC. Electronic address: bohannon@campbell.edu. FAU - Wang, Ying-Chih AU - Wang YC AD - Department of Occupational Science and Technology, University of Wisconsin-Milwaukee, Milwaukee, WI. LA - eng GR - N01AG60007/AG/NIA NIH HHS/United States PT - Journal Article PT - Multicenter Study PT - Observational Study PT - Research Support, N.I.H., Extramural DEP - 20180806 PL - United States TA - Arch Phys Med Rehabil JT - Archives of physical medicine and rehabilitation JID - 2985158R SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Cross-Sectional Studies MH - Female MH - Health/*statistics & numerical data MH - Healthy Volunteers MH - Humans MH - Limit of Detection MH - Male MH - Middle Aged MH - Reference Values MH - Reproducibility of Results MH - Statistics, Nonparametric MH - United States MH - Walk Test/*statistics & numerical data MH - *Walking Speed MH - Young Adult PMC - PMC6363908 MID - NIHMS1502980 OTO - NOTNLM OT - Gait OT - Reference values OT - Rehabilitation OT - Reproducibility of results EDAT- 2018/08/10 06:00 MHDA- 2019/12/25 06:00 PMCR- 2020/03/01 CRDT- 2018/08/10 06:00 PHST- 2018/05/15 00:00 [received] PHST- 2018/06/22 00:00 [revised] PHST- 2018/06/26 00:00 [accepted] PHST- 2018/08/10 06:00 [pubmed] PHST- 2019/12/25 06:00 [medline] PHST- 2018/08/10 06:00 [entrez] PHST- 2020/03/01 00:00 [pmc-release] AID - S0003-9993(18)30923-7 [pii] AID - 10.1016/j.apmr.2018.06.031 [doi] PST - ppublish SO - Arch Phys Med Rehabil. 2019 Mar;100(3):509-513. doi: 10.1016/j.apmr.2018.06.031. Epub 2018 Aug 6.