A Combination of Insufficient Physical Activity and Sedentary Behavior Associated with Dynapenic Abdominal Obesity and Dynapenic Obesity in Older Adults: A Cross-Sectional Analysis

Objective: To investigate the association between combined physical activity (PA) levels and sedentary behavior (SB) with dynapenic abdominal obesity (DAO) and dynapenic obesity (DO) in older adults. Methods: This cross-sectional, population-based epidemiological study included 207 community-dwelling older adults (58.90% women). PA and SB were assessed using the International Physical Activity Questionnaire. Participants were categorized into four groups: (G1) sufficiently active and low SB; (G2) sufficiently active and high SB; (G3) insufficiently active and low SB; and (G4) insufficiently active and high SB. DAO and DO were defined as the coexistence of dynapenia with abdominal and general obesity, respectively. Prevalence ratios (PR) and 95% confidence intervals (CI) were estimated using Poisson regression with robust variance. Results: The prevalence of DAO was 11.10% and DO was 6.80%. In the adjusted analysis, participants classified as insufficiently active with high SB (G4) had 5.54 times the prevalence of DAO (PR: 5.54, 95% CI: 1.91–16.03) and 6.54 times the prevalence of DO (PR: 6.54, 95% CI: 1.68–36.66) compared to the reference group (G1) (sufficiently active and low SB). Conclusions: Insufficient PA combined with high SB was positively associated with both DAO and DO in the studied population of older adults.