What Cut-Point in Gait Speed Best Discriminates Community-Dwelling Older Adults With Mobility Complaints From Those Without? A Pooled Analysis From the Sarcopenia Definitions and Outcomes Consortium
AuthorCawthon, Peggy M
Patel, Sheena M
Kritchevsky, Stephen B
Newman, Anne B
Kiel, Douglas P
Travison, Thomas G
Cummings, Steven R
Orwoll, Eric S
Duchowny, Kate A
Karlsson, Magnus K
Jordan, Joanne M
Pencina, Karol M
Fielding, Roger A
Manini, Todd M
JournalJournals of Gerontology. Series A, Biological Sciences and Medical Sciences
PublisherOxford University Press
MetadataShow full item record
AbstractBackground Cut-points to define slow walking speed have largely been derived from expert opinion. Methods Study participants (13 589 men and 5043 women aged ≥65years) had walking speed (m/s) measured over 4-6 m (mean ± SD: 1.20 ± 0.27 m/s in men and 0.94 ± 0.24 m/s in women.) Mobility limitation was defined as any self-reported difficulty with walking approximately 1/4 mile (prevalence: 12.6% men, 26.4% women). Sex-stratified classification and regression tree (CART) models with 10-fold cross-validation identified walking speed cut-points that optimally discriminated those who reported mobility limitation from those who did not. Results Among 5043 women, CART analysis identified 2 cut-points, classifying 4144 (82.2%) with walking speed ≥0.75 m/s, which we labeled as "fast"; 478 (9.5%) as "intermediate" (walking speed ≥0.62 m/s but <0.75 m/s); and 421 (8.3%) as "slow" (walking speed <0.62 m/s). Among 13 589 men, CART analysis identified 3 cut-points, classifying 10 001 (73.6%) with walking speed ≥1.00 m/s ("very fast"); 2901 (21.3%) as "fast" (walking speed ≥0.74 m/s but <1.00 m/s); 497 (3.7%) as "intermediate" (walking speed ≥0.57 m/s but <0.74 m/s); and 190 (1.4%) as "slow" (walking speed <0.57 m/s). Prevalence of self-reported mobility limitation was lowest in the "fast" or "very fast" (11% for men and 19% for women) and highest in the "slow" (60.5% in men and 71.0% in women). Rounding the 2 slower cut-points to 0.60 m/s and 0.75 m/s reclassified very few participants. Conclusions Cut-points in walking speed of approximately 0.60 m/s and 0.75 m/s discriminate those with self-reported mobility limitation from those without.
Rights/Terms© The Author(s) 2021. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: firstname.lastname@example.org.
Identifier to cite or link to this itemhttp://hdl.handle.net/10713/16952
- Identification of Sarcopenia Components That Discriminate Slow Walking Speed: A Pooled Data Analysis.
- Authors: Manini TM, Patel SM, Newman AB, Travison TG, Kiel DP, Shardell MD, Pencina KM, Wilson KE, Kelly TL, Massaro JM, Fielding RA, Magaziner J, Correa-de-Araujo R, Kwok TCY, Hirani V, Karlsson MK, DʼAgostino RB Sr, Mellström D, Ohlsson C, Ribom E, Jordan JM, Bhasin S, Cawthon PM
- Issue date: 2020 Jul
- Anthropometric Cut Points for Definition of Sarcopenia Based on Incident Mobility and Physical Limitation in Older Chinese People.
- Authors: Woo J, Leung J
- Issue date: 2016 Jul
- Putative Cut-Points in Sarcopenia Components and Incident Adverse Health Outcomes: An SDOC Analysis.
- Authors: Cawthon PM, Manini T, Patel SM, Newman A, Travison T, Kiel DP, Santanasto AJ, Ensrud KE, Xue QL, Shardell M, Duchowny K, Erlandson KM, Pencina KM, Fielding RA, Magaziner J, Kwok T, Karlsson M, Ohlsson C, Mellström D, Hirani V, Ribom E, Correa-de-Araujo R, Bhasin S
- Issue date: 2020 Jul
- Application of SDOC Cut Points for Low Muscle Strength for Recovery of Walking Speed After Hip Fracture.
- Authors: Orwig DL, Magaziner J, Fielding RA, Zhu H, Binder EF, Cawthon PM, Bhasin S, Correa-de-Araujo R, Manini T, Patel S, Shardell M, Travison TG
- Issue date: 2020 Jun 18