Please use this identifier to cite or link to this item: https://doi.org/10.1093/gerona/glaa045
Title: Distinct Trajectories of Individual Physical Performance Measures Across 9 Years in 60-to 70-Year-Old Adults
Authors: Hoekstra, Trynke
Rojer, Anna Galina Maria
van Schoor, Natasja M
Maier, Andrea Britta 
Pijnappels, Mirjam
Keywords: Science & Technology
Life Sciences & Biomedicine
Geriatrics & Gerontology
Gerontology
Physical functional performance
Latent class growth models
Walking speed
Handgrip strength
Chair stand
LOWER-EXTREMITY FUNCTION
GAIT SPEED
HANDGRIP STRENGTH
PREDICT MORTALITY
WALKING SPEED
DISABILITY
POPULATION
SURVIVAL
BALANCE
HEALTH
Issue Date: 1-Oct-2020
Publisher: OXFORD UNIV PRESS INC
Citation: Hoekstra, Trynke, Rojer, Anna Galina Maria, van Schoor, Natasja M, Maier, Andrea Britta, Pijnappels, Mirjam (2020-10-01). Distinct Trajectories of Individual Physical Performance Measures Across 9 Years in 60-to 70-Year-Old Adults. JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES 75 (10) : 1951-1959. ScholarBank@NUS Repository. https://doi.org/10.1093/gerona/glaa045
Abstract: Background: Physical performance is an important factor for successful aging. This study aimed to identify distinct trajectories of multiple physical performance measures over 9 years in individuals aged 60–70 years and to evaluate their characteristics and the overlap between measures. Methods: Four physical performance measures were assessed in 440 participants of the Longitudinal Aging Study Amsterdam: tandem stand, gait speed, chair stand, and handgrip strength. Gender-specific latent class models were conducted to obtain distinct trajectories and their degree of overlap. Results: Mean age at baseline was 67.9 (SD 1.7) years for males and 68.0 (SD 1.7) years for females. The optimal number of trajectories differed across measures. For tandem stand, no distinct trajectories were found (all 179 males, 198 females). For gait speed, three trajectories were identified, dependent on baseline speed: high-stable (47 males, 27 females), intermediate-stable (132 males, 130 females), and low-declining performance (6 males, 48 females). Two trajectories were identified for the chair stand: a stable (168 males, 150 females) and declining trajectory (10 males, 38 females). For handgrip strength, three declining trajectories were identified differing in baseline performance: high (55 males, 75 females), intermediate (111 males, 118 females), and low (17 males, 10 females). Overall, 11.9% of males and 5.7% of females were classified in similar trajectories across measures. Conclusions: Trajectories of physical performance were heterogeneous, but showed similar patterns for males and females. Little overlap between measures was shown, suggesting different mechanisms for decline. This study emphasizes the use of multiple domains to assess physical performance.
Source Title: JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
URI: https://scholarbank.nus.edu.sg/handle/10635/234896
ISSN: 1079-5006
1758-535X
DOI: 10.1093/gerona/glaa045
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