In large-scale cohort studies, sedentary behavior has been routinely measured using self-reports or devices that apply a count-based threshold. We employed a gold standard postural allocation technique using thigh inclination and acceleration to capture free-living sedentary behavior. Participants aged 46.8 (standard deviation (SD), 0.7) years (n = 5,346) from the 1970 British Cohort Study (United Kingdom) were fitted with a waterproofed thigh-mounted accelerometer device (activPAL3 micro; PAL Technologies Ltd., Glasgow, United Kingdom) worn continuously over 7 days; data were collected in 2016-2018. Usable data were retrieved from 83.0% of the devices fitted, with 79.6% of the sample recording at least 6 full days of wear (at least 10 waking hours). Total daily sitting time (average times were 9.5 (SD, 2.0) hours/day for men and 9.0 (SD, 2.0) hours/day for women) accounted for 59.4% and 57.3% of waking hours in men and women, respectively; 73.8% of sample participants recorded ≥8 hours/day of sitting. Sitting in prolonged bouts of 60 continuous minutes or more accounted for 25.3% and 24.4% of total daily sitting in men and women, respectively. In mutually adjusted models, male sex, underweight, obesity, education, poor self-rated health, television-viewing time, and having a sedentary occupation were associated with higher device-measured sitting times. Thigh-worn accelerometry was feasibly deployed and should be considered for larger-scale national surveys.
Evelyn Iriarte, PhD, MSN, RN, was an Adjunct Instructor, Pontificia Universidad Catolica de Chile School of Nursing, Santiago, Chile, and was a Postdoctoral Fellow, University of Colorado College of Nursing, Aurora, Colorado, USA. Dr. Iriarte is now an Assistant Professor, University of Colorado College of Nursing, Aurora, Colorado, USA.
Although exercise supports the physical function and health of older people living with HIV (PLWH), less than half of PLWH globally achieve recommended levels of activity. A qualitative descriptive design was used to determine what motivates sedentary PLWH, 50 years and older, to participate in an exercise trial. Interviews were conducted with PLWH who participated in an exercise trial (n = 30) and PLWH who declined enrollment in the same exercise trial (n = 4).
Introduction: The associations between sedentary lifestyles, physical activity and the risk of respiratory diseases are crucial areas of medical and health research. Despite numerous studies, uncertainties and controversies regarding causal relationships persist. We utilized Mendelian randomization (MR) analysis, an advanced statistical tool, to further investigate causal links.
Objective: Aim: The aim of the study was to explore the factors that influence the development of a caring attitude toward health in modern youth as a foundation for an active life stance.
Patients And Methods: Materials and Methods: Various methods, including analysis of normative and scientific sources, systematic analysis, and empirical research, were employed. An anonymous survey of 114 pedagogical students was conducted to assess how much they value their health.
Behavior-change lifestyle interventions are fundamental in children and adolescent obesity management. This scoping review discusses optimal behavior-change lifestyle interventions in the treatment of overweight and obesity in children and adolescents. A literature search on diet, physical activity, and behavioral intervention for obesity treatment in children and adolescents aged 0-19 years was conducted in the Cochrane Library, MEDLINE (OVID), EMBASE, and ClinicalTrials.
Institut Universitaire de Cardiologie et de Pneumologie de Québec- Université Laval, Quebec, Canada; Faculty of Medicine, Laval University, Quebec, Canada. Electronic address:
This review looks into sedentary behavior (SB) beyond its simplistic definition of "sitting" while also including sedentary activities. It explores the definition, physiological characteristics, prevalence, and guidelines of SB, contrasting it with physical activity (PA). The discussion encompasses: 1) the association between SB and mortality, with a specific focus on cardiovascular (CV) outcomes; 2) biological mechanisms linking SB to CV health, differentiating between the impacts of acute and chronic sitting additionally, 3) sex and gender differences in SB and, 4) SB as an independent CV risk factor are explored.
