Sedentary Behavior in U.S. Adults: Fall 2019

Purpose Higher levels of sedentary behavior are associated with early mortality, but the distribution of sedentary time by classes of behavior and demographic groups is poorly described in U.S. adults. To quantify the amount and sources of sedentary time in U.S. adults, we conducted a nationwide survey using a novel validated self-administered previous-day recall method and compared these values with a commonly used sitting time question. Methods Participants from the AmeriSpeak panel 20 to 75 yr of age (N = 2640) completed up to two activities completed over time in 24 h (ACT24) previous-day recalls. Recalls were conducted on randomly selected days in October and November 2019. Survey sample designs were applied to reflect the U.S. population. Results Mean age was 45.3 yr, 51% were female, 67% non-Hispanic White, and 37% had a body mass index of ≥30 kg·m−2. U.S. adults reported a mean 9.5 h·d−1 of sedentary time (95% confidence interval = 9.4, 9.7 h·d−1), which was 34% more than reported using a common surveillance measure (P
Source: Medicine and Science in Sports and Exercise - Category: Sports Medicine Tags: EPIDEMIOLOGY Source Type: research