Substituting sedentary time with physical activity in youngest-old to oldest-old community-dwelling older adults: Associations with body composition

• DOI: 10.3389/fpubh.2022.837213
• Publication Date: 2022-11-29T17:10:21Z
• Authors: Ting-Fu Lai; Yung Liao; Ming-Chun Hsueh; Hsin-Yen Yen; Jong-Hwan Park; Jae Hyeok Chang
• Keywords: Bioelectrical Impedance Analysis; Circumference; Sedentary lifestyle; Body Fat Percentage

Introduction Several studies have suggested that physical activity and sedentary behavior are strongly independently associated with body composition obesity. However, few investigated whether substituting time moderate-to-vigorous is in older adults, especially among those than 75 years. Methods This study examined the associations between replacing obesity indices a sample of 199 community-dwelling Taiwanese adults (52.3% women; 80.6 ± 7.0 years). Physical were measured using triaxial accelerometer (GT3X+, ActiGraph). Body computed through bioelectrical impedance analysis fat percentage appendicular skeletal muscle mass index. Waist circumference index by trained personnel. Isotemporal substitution analyses estimated these after adjusting for sociodemographic characteristics nutritional status. Results The showed 30 min per day was lower (B = −1.408, 95% CI −2.55, −0.264), −0.681, −1.300, −0.061), waist −2.301, −4.062, −0.539) covariates. Substituting light −2.230, −4.173, −0.287) Stratified indicated stronger youngest-old normal status (vs. underweight status). Discussion These findings confirm importance reducing increasing to improve their health, as well highlighting taking into account age group.