0000000000680951
AUTHOR
Aini Paavilainen
Additional file 1 of Blood and skeletal muscle ageing determined by epigenetic clocks and their associations with physical activity and functioning
Additional file 1: Within-pair correlations in age acceleration in blood and in muscle. Additional file 2: Associations between DNAmAge age acceleration estimates and body composition and physical activity in blood. Additional file 3: Sensitivity analyses related to twin pair discordance in body mass index.
Additional file 1 of Blood and skeletal muscle ageing determined by epigenetic clocks and their associations with physical activity and functioning
Additional file 1: Within-pair correlations in age acceleration in blood and in muscle. Additional file 2: Associations between DNAmAge age acceleration estimates and body composition and physical activity in blood. Additional file 3: Sensitivity analyses related to twin pair discordance in body mass index.
Blood and skeletal muscle ageing determined by epigenetic clocks and their associations with physical activity and functioning
AbstractThe aim of this study was to investigate the correspondence of different biological ageing estimates (i.e. epigenetic age) in blood and muscle tissue and their associations with physical activity (PA), physical function and body composition. Two independent cohorts (N = 139 and N = 47) were included, whose age span covered adulthood (23–69 years). Whole blood and m. vastus lateralis samples were collected, and DNA methylation was analysed. Four different DNA methylation age (DNAmAge) estimates were calculated using genome-wide methylation data and publicly available online tools. A novel muscle-specific methylation age was estimated using the R-package ‘MEAT’. PA was measured with q…