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Sedentary behaviour

Meghan K Edwards, Paul D Loprinzi
BACKGROUND: Previous research demonstrates individual associations of sedentary behaviour, moderate-to-vigorous physical activity (MVPA) and cardiorespiratory fitness on systemic inflammation, often assessed via C-reactive protein (CRP) levels. Their potential additive association on CRP, however, has not been fully evaluated, which was the purpose of this study. METHODS: Data from the 2003-2004 National Health and Nutrition Examination Survey were used (N = 627 adults 20-49 years)...
October 26, 2016: Clinical Physiology and Functional Imaging
Terry Boyle, Jeff K Vallance, Matthew Buman, Brigid M Lynch
BACKGROUND: Moderate-to-vigorous intensity physical activity (MVPA) is inversely associated with waist circumference and body mass index (BMI) among breast cancer survivors. Limited research has focused on behaviours that account for larger portions of the day [sleep, sedentary time, and light-intensity physical activity (LPA)]. We investigated the interdependent associations of self-reported sleep, objectively-assessed prolonged and short bouts of sedentary time, total LPA and total MVPA with waist circumference and BMI...
October 25, 2016: Cancer Epidemiology, Biomarkers & Prevention
D Bolton, M Mayer-Pinto, G F Clark, K A Dafforn, W A Brassil, A Becker, E L Johnston
Urban land and seascapes are increasingly exposed to artificial lighting at night (ALAN), which is a significant source of light pollution. A broad range of ecological effects are associated with ALAN, but the changes to ecological processes remain largely unstudied. Predation is a key ecological process that structures assemblages and responds to natural cycles of light and dark. We investigated the effect of ALAN on fish predatory behaviour, and sessile invertebrate prey assemblages. Over 21days fish and sessile assemblages were exposed to 3 light treatments (Day, Night and ALAN)...
October 22, 2016: Science of the Total Environment
Michał Bronikowski, Małgorzata Bronikowska, Beata Pluta, Janusz Maciaszek, Maciej Tomczak, Agata Glapa
The promotion of physical activity (PA) in children and their parents requires effective planning and sometimes even interventions. This study shows the effect of PA during a 15-week intervention program "Junior for Seniors" by applying a socioecological model to the interpretation of the data. This comprehensive approach emphasizes the fact that health promotion should focus not only on intrapersonal factors but also on the multilevel factors that might be determinants and modulators of increased PA. In 2015, 24 children ("juniors," 14 girls and 10 boys, aged M = 7...
2016: BioMed Research International
Arlene M McGarty, Victoria Penpraze, Craig A Melville
BACKGROUND: Valid objective measurement is integral to increasing our understanding of physical activity and sedentary behaviours. However, no population-specific cut points have been calibrated for children with intellectual disabilities. Therefore, this study aimed to calibrate and cross-validate the first population-specific accelerometer intensity cut points for children with intellectual disabilities. METHODS: Fifty children with intellectual disabilities were randomly assigned to the calibration (n = 36; boys = 28, 9...
2016: PloS One
Victor E Ezeugwu, Neera Garga, Patricia J Manns
PURPOSE: Understanding the determinants of sedentary behaviour (sitting or lying with low energy expenditure) in stroke survivors can enhance the development of successful behaviour change strategies. This qualitative study explored the perceptions of stroke survivors about sedentary behaviour and ways in which it can be changed. METHODS: An interpretative qualitative inquiry was used with thematic analysis of interview data. Interviews were conducted using a semi-structured guide with 13 stroke survivors...
October 19, 2016: Disability and Rehabilitation
Tasneem Khan, Shelley Macaulay, Shane A Norris, Lisa K Micklesfield, Estelle D Watson
BACKGROUND: Over the past decade the prevalence of gestational diabetes mellitus (GDM) has increased rapidly in both developed and developing countries and has become a growing health concern worldwide. A recent systematic review highlighted the paucity of data available on the prevalence and potential burden of GDM in Africa, which was emphasised by the fact that only 11 % of African countries were represented in the review. In South Africa, the prevalence of GDM remains unknown, although one would estimate it to be high due to urbanisation and the growing obesity epidemic...
October 18, 2016: BMC Women's Health
T Thomsen, M Aadahl, N Beyer, M L Hetland, K Løppenthin, J Midtgaard, R Christensen, B A Esbensen
BACKGROUND: Patients with rheumatoid arthritis (RA) spend a high proportion of their waking time in sedentary behaviour (SB) and have an increased risk of cardiovascular disease. Reduction of SB and increase in light intensity physical activity has been suggested as a means of improvement of health in patients with mobility problems. Short-term intervention studies have demonstrated that SB can be reduced by behavioural interventions in sedentary populations. To evaluate descriptively the feasibility of recruitment, randomisation, outcome assessments, retention and the acceptability of an individually tailored, theory-based behavioural intervention targeting reduction in daily sitting time in patients with RA...
October 18, 2016: BMC Musculoskeletal Disorders
Patrick S Tucker, Aaron T Scanlan, Rebecca K Vella, Vincent J Dalbo
BACKGROUND: Chronic kidney disease (CKD) is an irreversible disease that diminishes length and quality of life. Emerging evidence suggests CKD progression and genomic integrity are inversely and causally related. To reduce health complications related to CKD progression, chronic aerobic exercise is often recommended. To date, appraisals of differing modes of exercise, along with postulations regarding the mechanisms responsible for observed effects, are lacking. In order to examine the ability of aerobic exercise to encourage improvements in genomic integrity, we evaluated the effects of 8 weeks of high-intensity interval training (HIIT; 85 % VO2max), low intensity training (LIT; 45-50 % VO2max), and sedentary behaviour (SED), in an animal model of early-stage CKD...
December 2016: Sports Medicine—Open
Andrew N Reynolds, Jim I Mann, Sheila Williams, Bernard J Venn
AIMS/HYPOTHESIS: Regular physical activity is a cornerstone of diabetes management. We conducted a study to evaluate whether specifying the timing of walking in relation to meals enhances the benefits conferred by current physical activity guidelines. METHODS: A total of 41 adults with type 2 diabetes mellitus (mean ± SD age 60 ± 9.9 years; mean diabetes duration 10 years) participated in this randomised, crossover study. Randomisation was by a computer-generated protocol...
October 17, 2016: Diabetologia
Stephanie Schoeppe, Corneel Vandelanotte, Elling Bere, Nanna Lien, Maïté Verloigne, Éva Kovács, Yannis Manios, Mona Bjelland, Frøydis Nordgård Vik, Wendy Van Lippevelde
BACKGROUND: Parents play an important role in modelling healthy behaviours to their children. This study investigated associations between parent and child physical activity and screen time behaviours across specific domains, including moderating effects by parent and child gender. METHOD: The sample comprised 3300 school children and 2933 parents participating in the UP4FUN project (mean ages: child 11.2 ± 0.8 years, mother 40.0 ± 4.9 years, father 43.4 ± 5...
October 15, 2016: European Journal of Public Health
Sofie Compernolle, Katrien De Cocker, Célina Roda, Jean-Michel Oppert, Joreintje D Mackenbach, Jeroen Lakerveld, Ketevan Glonti, Helga Bardos, Harry Rutter, Greet Cardon, Ilse De Bourdeaudhuij
BACKGROUND: The relation between neighbourhood environmental factors and domain-specific sedentary behaviours among adults remains unclear. This study firstly aims to examine the association of perceived and objectively measured neighbourhood safety, aesthetics, destinations and functionality with transport-related, work-related and leisure-time sedentary behaviour. Secondly, the study aims to assess whether these associations are moderated by age, gender or educational level. METHODS: In 60 randomly sampled neighbourhoods from 5 urban regions in Europe (Ghent and suburbs, Paris and inner suburbs, Budapest and suburbs, the Randstad, and Greater London), a virtual audit with Google Street View was performed to assess environmental characteristics...
2016: PloS One
Joshua Hayward, Felice N Jacka, Helen Skouteris, Lynne Millar, Claudia Strugnell, Boyd A Swinburn, Steven Allender
OBJECTIVE: Depression affects many Australian adolescents. Research points to the potential of lifestyle improvement for the population-level prevention of mental disorders. However, most studies examine single relationships without considering the combined contribution of lifestyle factors to variance in depression. This study examined associations between adolescent diet, physical activity and screen time behaviours and depressive symptomatology. METHODS: A cross-sectional sample of year 8 and 10 students was recruited from 23 participating schools in 18 Victorian communities...
October 12, 2016: Australian and New Zealand Journal of Psychiatry
Jared M Tucker, Kathleen Howard, Emily H Guseman, Kimbo E Yee, Heather Saturley, Joey C Eisenmann
BACKGROUND: The Family Nutrition and Physical Activity Screening Tool (FNPA) evaluates family behavioural and environmental factors associated with pediatric obesity, but it is unknown if FNPA scores differ among youth across obesity severities. Our aim was to determine the association between the FNPA and obesity severity in youth referred to weight management. METHODS: Upon initiating treatment, height, weight, and the FNPA were collected according to standard procedures...
October 4, 2016: Obesity Research & Clinical Practice
Erin Hoare, Karen Milton, Charlie Foster, Steven Allender
BACKGROUND: With technological developments and modernised sedentary lifestyles has come an increase in diseases associated with inactivity such as obesity and other non-communicable diseases. Emerging evidence suggests that time spent sedentary may also interact with mental health. This systematic review examined the associations between sedentary behaviour and mental health problems among adolescents. METHODS: This systematic review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses, and applied a quality assessment tool for quantitative studies to identity best available evidence...
October 8, 2016: International Journal of Behavioral Nutrition and Physical Activity
Christina Howitt, Soren Brage, Ian R Hambleton, Kate Westgate, T Alafia Samuels, Angela Mc Rose, Nigel Unwin
BACKGROUND: Current understanding of population physical activity (PA) levels and sedentary behaviour in developing countries is limited, and based primarily on self-report. We described PA levels using objective and self-report methods in a developing country population. METHODS: PA was assessed in a cross-sectional, representative sample of the population of Barbados (25-54 years), using a validated questionnaire (RPAQ) and individually calibrated combined heart rate and movement sensing monitors...
October 1, 2016: BMC Public Health
Sofie Compernolle, Katrien De Cocker, Pedro J Teixeira, Jean-Michel Oppert, Célina Roda, Joreintje D Mackenbach, Jeroen Lakerveld, Martin McKee, Ketevan Glonti, Harry Rutter, Helga Bardos, Greet Cardon, Ilse De Bourdeaudhuij
BACKGROUND: Sedentary behaviour has been associated with obesity and related chronic diseases. Disentangling the nature of this association is complicated due to interactions with other lifestyle factors, such as dietary habits, yet limited research has investigated the relation between domain-specific sedentary behaviours and dietary habits in adults. The aim of this paper was to examine the association between domain-specific sedentary behaviours and dietary habits in adults and to test the moderating effect of age and gender on this association...
October 6, 2016: BMC Public Health
Kishan Bakrania, Thomas Yates, Alex V Rowlands, Dale W Esliger, Sarah Bunnewell, James Sanders, Melanie Davies, Kamlesh Khunti, Charlotte L Edwardson
OBJECTIVES: (1) To develop and internally-validate Euclidean Norm Minus One (ENMO) and Mean Amplitude Deviation (MAD) thresholds for separating sedentary behaviours from common light-intensity physical activities using raw acceleration data collected from both hip- and wrist-worn tri-axial accelerometers; and (2) to compare and evaluate the performances between the ENMO and MAD metrics. METHODS: Thirty-three adults [mean age (standard deviation (SD)) = 27.4 (5.9) years; mean BMI (SD) = 23...
2016: PloS One
Paddy C Dempsey, Neville Owen, Thomas E Yates, Bronwyn A Kingwell, David W Dunstan
Epidemiological evidence indicates that excessive time spent in sedentary behaviours (too much sitting) is associated with an increased risk of type 2 diabetes (T2D). Here, we highlight findings of experimental studies corroborating and extending the epidemiological evidence and showing the potential benefits for T2D of reducing and breaking up sitting time across the whole day. We also discuss future research opportunities and consider emerging implications for T2D prevention and management. This new evidence is stimulating an expansion of diabetes-related physical activity guidelines-suggesting that in addition to moderate-vigorous physical activity, reducing and regularly interrupting prolonged sitting time is likely to have important and varied benefits across the spectrum of diabetes risk...
November 2016: Current Diabetes Reports
Mark Orme, Amie Weedon, Dale Esliger, Paula Saukko, Mike Morgan, Michael Steiner, John Downey, Sally Singh, Lauren Sherar
INTRODUCTION: An acute exacerbation of chronic obstructive pulmonary disease (COPD) marks a critical life event, which can lower patient quality of life and ability to perform daily activities. Patients with COPD tend to lead inactive and highly sedentary lifestyles, which may contribute to reductions in functional capacity. Targeting sedentary behaviour (SB) may be more attainable than exercise (at a moderate-to-vigorous intensity) for behaviour change in patients following an exacerbation...
October 3, 2016: BMJ Open
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