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STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN

Stair climbing assesses neuromuscular components of movement, including muscle power (force*velocity) which may decline earlier in aging vs. strength. We hypothesized age and age-related factor (N=1370; 65.5±2.7 years) associations to stair climb total time (sec), ascend lap time degradation (lap 1...

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Autores principales: Strotmeyer, Elsa, Lange-Maia, Brittney S, Cauley, Jane A, Dugan, Sheila A, Khoudary, Samar R El, Gabriel, Kelley Pettee, Glynn, Nancy W, Karvonen-Gutierrez, Carrie A
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6846212/
http://dx.doi.org/10.1093/geroni/igz038.1988
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author Strotmeyer, Elsa
Lange-Maia, Brittney S
Cauley, Jane A
Dugan, Sheila A
Khoudary, Samar R El
Gabriel, Kelley Pettee
Glynn, Nancy W
Karvonen-Gutierrez, Carrie A
author_facet Strotmeyer, Elsa
Lange-Maia, Brittney S
Cauley, Jane A
Dugan, Sheila A
Khoudary, Samar R El
Gabriel, Kelley Pettee
Glynn, Nancy W
Karvonen-Gutierrez, Carrie A
author_sort Strotmeyer, Elsa
collection PubMed
description Stair climbing assesses neuromuscular components of movement, including muscle power (force*velocity) which may decline earlier in aging vs. strength. We hypothesized age and age-related factor (N=1370; 65.5±2.7 years) associations to stair climb total time (sec), ascend lap time degradation (lap 1 minus 3), power (W/kg body weight) and power degradation (lap 1 minus 3). Adjusting for demographic, lifestyle and age-related comorbidity factors using multivariate linear regression, older age independently related to slower total time and lower power. Non-white ethnicity had slower total time (Black, Hispanic), higher ascend time degradation (Hispanic), and lower power (Hispanic, Chinese, Japanese) vs. Whites. Higher 36-Item Short Form Health Survey (SF-36) and Modified Baecke physical activity scores indicated better performance: lower total time, higher power (SF-36 only), and less degradation in ascend time and power. Stair climb time and power in early old age may capture initial functional loss targets for interventions to prevent late-life disability.
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spelling pubmed-68462122019-11-18 STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN Strotmeyer, Elsa Lange-Maia, Brittney S Cauley, Jane A Dugan, Sheila A Khoudary, Samar R El Gabriel, Kelley Pettee Glynn, Nancy W Karvonen-Gutierrez, Carrie A Innov Aging Session 2445 (Symposium) Stair climbing assesses neuromuscular components of movement, including muscle power (force*velocity) which may decline earlier in aging vs. strength. We hypothesized age and age-related factor (N=1370; 65.5±2.7 years) associations to stair climb total time (sec), ascend lap time degradation (lap 1 minus 3), power (W/kg body weight) and power degradation (lap 1 minus 3). Adjusting for demographic, lifestyle and age-related comorbidity factors using multivariate linear regression, older age independently related to slower total time and lower power. Non-white ethnicity had slower total time (Black, Hispanic), higher ascend time degradation (Hispanic), and lower power (Hispanic, Chinese, Japanese) vs. Whites. Higher 36-Item Short Form Health Survey (SF-36) and Modified Baecke physical activity scores indicated better performance: lower total time, higher power (SF-36 only), and less degradation in ascend time and power. Stair climb time and power in early old age may capture initial functional loss targets for interventions to prevent late-life disability. Oxford University Press 2019-11-08 /pmc/articles/PMC6846212/ http://dx.doi.org/10.1093/geroni/igz038.1988 Text en © The Author(s) 2019. Published by Oxford University Press on behalf of The Gerontological Society of America. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Session 2445 (Symposium)
Strotmeyer, Elsa
Lange-Maia, Brittney S
Cauley, Jane A
Dugan, Sheila A
Khoudary, Samar R El
Gabriel, Kelley Pettee
Glynn, Nancy W
Karvonen-Gutierrez, Carrie A
STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN
title STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN
title_full STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN
title_fullStr STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN
title_full_unstemmed STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN
title_short STAIR CLIMB TIME AND FUNCTIONAL POWER ASSOCIATIONS IN EARLY OLD AGE: SWAN
title_sort stair climb time and functional power associations in early old age: swan
topic Session 2445 (Symposium)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6846212/
http://dx.doi.org/10.1093/geroni/igz038.1988
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