Open AccessFive-year changes in objectively measured cardiorespiratory fitness, physical activity, and sedentary time in mid-to-late adulthood
Author(s) -
Ryan J. Dougherty,
Sarah Lose,
Julian M. Gaitán,
Brandon Mergen,
Nathaniel A. Chin,
Ozioma C. Okonkwo,
Dane B. Cook
Publication year - 2022
Publication title -
applied physiology, nutrition and metabolism/applied physiology, nutrition, and metabolism
Language(s) - English
Resource type - Journals
eISSN - 1715-5320
pISSN - 1715-5312
DOI - 10.1139/apnm-2021-0500
Subject(s) - cardiorespiratory fitness , physical activity , physical fitness , medicine , sedentary lifestyle , novelty , demography , treadmill , young adult , gerontology , physical therapy , psychology , social psychology , sociology
This study examined 5-year changes in cardiorespiratory fitness, physical activity, and sedentary time in mid-to-late aged adults. Fifty-seven participants completed baseline and follow-up treadmill exercise tests and physical activity monitoring. We observed a 14% decline in fitness ( p < 0.001), 12% decrease in physical activity ( p = 0.010), and non-significant increase in sedentary time ( p = 0.196). Age was negatively associated with 5-year change in physical activity ( r = -0.31; p = 0.02) and this decline was strongest among APOE ε4 carriers ( g = -0.75). Novelty: Cardiorespiratory fitness and physical activity significantly declined from mid-to-late adulthood, these findings were most pronounced among older adults and those with genetic risk for Alzheimer's disease.