scholarly journals Moderate-to-vigorous physical activity and sedentary behaviours in relation to body mass index-defined and waist circumference-defined obesity

2008 ◽  
Vol 101 (5) ◽  
pp. 765-773 ◽  
Author(s):  
Emmanuel Stamatakis ◽  
Vasant Hirani ◽  
Kirsten Rennie
Keyword(s):  
Physical Activity ◽  
Waist Circumference ◽  
Sedentary Behaviour ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Domestic Activity ◽  
Sedentary Behaviours ◽  
Dependent Variables ◽  
Activity Types ◽  
Vigorous Intensity

The aim of the present study was to investigate the relationships of physical activity types and sedentary behaviour with BMI and waist circumference (WC). The sample comprised 6215 adults (2775 men, 3440 women) aged 16 years and over living in Scotland. Self-reported physical activity of moderate to vigorous intensity (MVIA) included domestic activity, walking, and sports and exercises. MVIA levels were classified as being inactive, being insufficiently active, being sufficiently active for general health benefits and being sufficiently active for obesity prevention. Sedentary time was defined as television and other screen-based entertainment time (TVSE). Dependent variables were BMI-defined obesity (BMI-OB) and WC-defined obesity (WC-OB). TVSE was positively related to both WC-OB (adjusted OR 1·69 (95 % CI 1·39, 2·05) for ≥ 4 h of TVSE per d compared with < 2 h/d) and BMI-OB (OR 1·88; 95 % CI 1·51, 2·35) independently of MVIA. Those classified as most active who reported ≥ 4 h/d of TVSE had higher prevalence of BMI-OB (18·9 v. 8·3 %; P < 0·05) and WC-OB (28·0 v. 10·0 %; P < 0·01) than those equally active with < 2 h/d of TVSE. Sports and walking were related inversely to WC-OB (OR for no time compared with ≥ 30 min/d: 1·55 (95 % CI 1·24, 1·94); 2·06 (95 % CI 1·64, 2·58)), but only walking was related to BMI-OB (OR 1·94; 95 % CI 1·58, 2·37). Domestic physical activity was not related to BMI-OB or WC-OB. In conclusion, physical activity and sedentary behaviour are independently related to obesity. Public health recommendations should both promote physical activity and discourage engagement in sedentary pursuits.

scholarly journals Using Compositional Data Analysis to Explore Associations Between Accumulation of Sedentary Behaviour and Physical Activity and Biomarkers of Cardiometabolic Health in Children and Adolescents: A Cross-Sectional Study

2020 ◽  
Author(s):  
Simone Johanna Josefa Maria Verswijveren ◽  
Karen E. Lamb ◽  
Josep A. Martín-Fernández ◽  
Elisabeth Winkler ◽  
Rebecca M. Leech ◽  
...  
Keyword(s):  
Physical Activity ◽  
Waist Circumference ◽  
Sedentary Behaviour ◽  
Time Use ◽  
Cardiometabolic Risk ◽  
Sedentary Time ◽  
Compositional Data ◽  
Compositional Data Analysis ◽  
Intensity Physical Activity ◽  
Vigorous Intensity

Abstract Background The consequences for youth cardiometabolic risk might depend on whether sedentary time and physical activity are accumulated sporadically (in shorter bouts) or in a sustained pattern (in longer bouts). This study aimed to: 1) describe daily time-use compositions of youth, including time spent in shorter and longer bouts of sedentary behaviour and physical activity; and 2) examine associations between time-use compositions with cardiometabolic biomarkers.Methods Accelerometer and cardiometabolic biomarker data (adiposity, blood pressure, lipids) from 7–13 year olds (mean ± SD: 10.4 ± 1.7) from two Australian studies were pooled (complete cases adiposity n = 772). A time-use composition of nine components was formed using compositional data analysis: time in shorter and longer bouts of sedentary behaviour, light-, moderate- and vigorous-intensity physical activity, and “other time” (i.e., non-wear/sleep). Shorter and longer bouts of sedentary time were defined as < 5 and ≥ 5 min, respectively. Longer light-, moderate- and vigorous-intensity physical activity bouts were defined as ≥ 1 min. Linear regression models examined associations between overall time-use composition and cardiometabolic biomarkers. Then, associations between ratios of longer relative to shorter activity patterns, and each intensity relative to more intense activities and/or “other time”, with cardiometabolic biomarkers were derived.Results Confounder-adjusted models showed that the overall time-use composition was associated with zBMI, waist circumference, systolic blood pressure, high-density lipoprotein cholesterol, triglycerides, and a combined cardiometabolic risk score. Specifically, more time in longer relative to shorter bouts of light-intensity physical activity was associated with greater zBMI (β = 1.79, SE = 0.70, p = 0.010) and waist circumference (β = 17.28, SE = 4.87, p < 0.001). More time in longer relative to shorter bouts of vigorous-intensity physical activity was also associated with higher waist circumference (β = 2.54, SE = 1.14, p = 0.026). More relative time in total light- and vigorous-intensity physical activity (including longer and shorter bouts) was associated with lower waist circumference. In contrast, more relative time in sedentary behaviour and moderate-intensity physical activity was detrimental for waist circumference.Conclusions Accumulating physical activity in frequent short bursts may be beneficial for adiposity compared to engaging in the same amount of these intensities in longer bouts.Trial registration: 'Lifestyle Of Our Kids’ (ACTRN12615000066583 [23/01/2015]) and ‘Transform-Us!’ (ACTRN12609000715279 [19/08/2009], ISRCTN83725066 [30/06/2010]).

Frailty in relation to sedentary behaviours and moderate-vigorous intensity physical activity

2014 ◽  
Vol 24 (4) ◽  
pp. 239-254 ◽  
Author(s):  
Joanna Blodgett ◽  
Olga Theou ◽  
Susan Kirkland ◽  
Pantelis Andreou ◽  
Kenneth Rockwood
Keyword(s):  
Physical Activity ◽  
Sedentary Behaviour ◽  
Negative Impact ◽  
Vigorous Physical Activity ◽  
Health It ◽  
Adverse Health Outcomes ◽  
Sedentary Behaviours ◽  
Intensity Physical Activity ◽  
The Mean ◽  
Vigorous Intensity

SummaryAs the mean life expectancy of the population continues to increase, the challenge for individuals is to remain healthy and fit throughout their life span. This review examines the relationships between moderate-vigorous physical activity and sedentary behaviour in relation to the fitness-frailty continuum. The association between increased physical activity and decreased adverse health outcomes is firmly established. A direct association between frailty and moderate-vigorous physical activity has been established to a lesser degree. What has some potential to undermine even these gains is the increasingly recognized relationship between sedentary behaviour and poor health. It now seems likely that sedentary behaviour can have a negative impact on an individual's health, over and above that of meeting the recommendations of moderate-vigorous physical activity. Individuals must consider both increasing their level of moderate-vigorous physical activity and minimizing their level of sedentary behaviour during all aspects of daily life.

Is Physical Activity-Related Self-Efficacy Associated with Moderate to Vigorous Physical Activity and Sedentary Behaviour among Ambulatory Children with Cerebral Palsy?

2021 ◽  
pp. e20200064
Author(s):  
Felipe Ganz ◽  
Virginia Wright ◽  
Patricia J. Manns ◽  
Lesley Pritchard
Keyword(s):  
Physical Activity ◽  
Sedentary Behaviour ◽  
Motor Function ◽  
Self Efficacy ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Linear Regression Models ◽  
Gross Motor ◽  
Gross Motor Function ◽  
Gmfcs Level

Purpose: To determine how physical activity-related self-efficacy is associated with physical activity and sedentary behaviour time among ambulatory children with cerebral palsy (CP). Method: Children with CP, Gross Motor Function Classification System (GMFCS) Levels I-III ( N = 26; aged 9–18 y), completed the task self-efficacy component of a self-efficacy scale and wore Actigraph GT3X+ accelerometers for 5 days. Correlations (Pearson and Spearman’s rank-order; a = 0.050) were conducted to evaluate the relationships among age, GMFCS level, self-efficacy, and both daily moderate-to-vigorous physical activity (MVPA) and sedentary time. Linear regression models were used to determine the relationships among the independent variables and MVPA and sedentary time. Results: Self-efficacy was positively associated with MVPA time ( r = 0.428, p = 0.015) and negatively correlated with sedentary time ( r = –0.332, p = 0.049). In our linear regression models, gross motor function (β = –0.462, p = 0.006), age (β = –0.344, p = 0.033), and self-efficacy (β = 0.281, p = 0.080) were associated with MVPA time ( R2 = 0.508), while GMFCS level (β = 0.439, p = 0.003) and age (β = 0.605, p < 0.001) were associated with sedentary time ( R2 = 0.584). Conclusions: This research suggests that self-efficacy, age, and gross motor function are associated with MVPA in children with CP. Additional research is needed to confirm these findings and further explore the influence of self-efficacy on sedentary behaviour.

scholarly journals Cross-sectional and prospective relationships of passive and mentally active sedentary behaviours and physical activity with depression

2019 ◽  
Vol 217 (2) ◽  
pp. 413-419 ◽  
Author(s):  
Mats Hallgren ◽  
Thi-Thuy-Dung Nguyen ◽  
Neville Owen ◽  
Brendon Stubbs ◽  
Davy Vancampfort ◽  
...  
Keyword(s):  
Physical Activity ◽  
Sedentary Behaviour ◽  
Odds Ratio ◽  
Vigorous Physical Activity ◽  
Depression Symptoms ◽  
Vigorous Activity ◽  
Light Physical Activity ◽  
Cross Sectional ◽  
Sedentary Behaviours ◽  
Potential Impact

BackgroundSedentary behaviour can be associated with poor mental health, but it remains unclear whether all types of sedentary behaviour have equivalent detrimental effects.AimsTo model the potential impact on depression of replacing passive with mentally active sedentary behaviours and with light and moderate-to-vigorous physical activity. An additional aim was to explore these relationships by self-report data and clinician diagnoses of depression.MethodIn 1997, 43 863 Swedish adults were initially surveyed and their responses linked to patient registers until 2010. The isotemporal substitution method was used to model the potential impact on depression of replacing 30 min of passive sedentary behaviour with equivalent durations of mentally active sedentary behaviour, light physical activity or moderate-to-vigorous physical activity. Outcomes were self-reported depression symptoms (cross-sectional analyses) and clinician-diagnosed incident major depressive disorder (MDD) (prospective analyses).ResultsOf 24 060 participants with complete data (mean age 49.2 years, s.d. 15.8, 66% female), 1526 (6.3%) reported depression symptoms at baseline. There were 416 (1.7%) incident cases of MDD during the 13-year follow-up. Modelled cross-sectionally, replacing 30 min/day of passive sedentary behaviour with 30 min/day of mentally active sedentary behaviour, light physical activity and moderate-to-vigorous activity reduced the odds of depression symptoms by 5% (odds ratio 0.95, 95% CI 0.94–0.97), 13% (odds ratio 0.87, 95% CI 0.76–1.00) and 19% (odds ratio 0.81, 95% CI 0.93–0.90), respectively. Modelled prospectively, substituting 30 min/day of passive with 30 min/day of mentally active sedentary behaviour reduced MDD risk by 5% (hazard ratio 0.95, 95% CI 0.91–0.99); no other prospective associations were statistically significant.ConclusionsSubstituting passive with mentally active sedentary behaviours, light activity or moderate-to-vigorous activity may reduce depression risk in adults.

scholarly journals New global guidelines on sedentary behaviour and health for adults: broadening the behavioural targets

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Paddy C. Dempsey ◽  
Stuart J. H. Biddle ◽  
Matthew P. Buman ◽  
Sebastien Chastin ◽  
Ulf Ekelund ◽  
...  
Keyword(s):  
Public Health ◽  
Physical Activity ◽  
Systematic Review ◽  
Sedentary Behaviour ◽  
Systematic Reviews ◽  
Cancer Mortality ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Public Health Practice ◽  
World Health

Abstract Background In 2018, the World Health Organisation (WHO) commenced a program of work to update the 2010 Global Recommendations on Physical Activity for Health, for the first-time providing population-based guidelines on sedentary behaviour. This paper briefly summarizes and highlights the scientific evidence behind the new sedentary behaviour guidelines for all adults and discusses its strengths and limitations, including evidence gaps/research needs and potential implications for public health practice. Methods An overview of the scope and methods used to update the evidence is provided, along with quality assessment and grading methods for the eligible new systematic reviews. The literature search update was conducted for WHO by an external team and reviewers used the AMSTAR 2 (Assessment of Multiple Systematic Reviews) tool for critical appraisal of the systematic reviews under consideration for inclusion. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) method was used to rate the certainty (i.e. very low to high) of the evidence. Results The updated systematic review identified 22 new reviews published from 2017 up to August 2019, 14 of which were incorporated into the final evidence profiles. Overall, there was moderate certainty evidence that higher amounts of sedentary behaviour increase the risk for all-cause, cardiovascular disease (CVD) and cancer mortality, as well as incidence of CVD, cancer, and type 2 diabetes. However, evidence was deemed insufficient at present to set quantified (time-based) recommendations for sedentary time. Moderate certainty evidence also showed that associations between sedentary behaviour and all-cause, CVD and cancer mortality vary by level of moderate-to-vigorous physical activity (MVPA), which underpinned additional guidance around MVPA in the context of high sedentary time. Finally, there was insufficient or low-certainty systematic review evidence on the type or domain of sedentary behaviour, or the frequency and/or duration of bouts or breaks in sedentary behaviour, to make specific recommendations for the health outcomes examined. Conclusions The WHO 2020 guidelines are based on the latest evidence on sedentary behaviour and health, along with interactions between sedentary behaviour and MVPA, and support implementing public health programmes and policies aimed at increasing MVPA and limiting sedentary behaviour. Important evidence gaps and research opportunities are identified.

scholarly journals Patterns of objectively assessed sedentary time and physical activity among Japanese workers: a cross-sectional observational study

BMJ Open ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. e021690 ◽  
Author(s):  
Satoshi Kurita ◽  
Ai Shibata ◽  
Kaori Ishii ◽  
Mohammad Javad Koohsari ◽  
Neville Owen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Sedentary Behaviour ◽  
Sedentary Time ◽  
Working Hours ◽  
Occupational Activity ◽  
Cross Sectional ◽  
Job Type ◽  
Japanese Workers ◽  
Activity Types ◽  
Time Periods

ObjectivesTo examine patterns of sedentary behaviour and physical activity, among Japanese workers with differing occupational activity types.DesignA cross-sectional observational study in 2013–2015.SettingTwo local communities in Japan.ParticipantsFull-time workers aged 40–64 years (n=345; 55% men) and who lived in two cities.Main outcome measuresFrom accelerometer data for 7 days, mean overall sedentary time, prolonged bouts of sedentary time and light-and moderate-to vigorous-intensity of physical activity (LPA and MVPA) as a proportion of accelerometer wear time and number of breaks per sedentary hour were identified for four time periods: working hours, workdays, non-work hours and non-workdays. These sedentary behaviour and physical activity measures in the four time periods were examined among workers with four self-attributed occupational activity types (mainly sitting, standing, walking, and physical labour), adjusting for sociodemographic attributes. Diurnal patterns of sedentary behaviour, LPA, and MVPA were examined.ResultsIn working hours, those with a sitting job had significantly more total and prolonged sedentary time (total: p<0.001; prolonged: p<0.01) along with less LPA (p<0.001) and MVPA (p<0.001) and less frequent breaks (p<0.01), compared with those with the three more active job type. Similar differences by job type were found for the whole working day, but not for prolonged sedentary time and breaks. On non-working hours and days, differences in sedentary and physically active patterns by job type were not apparent.ConclusionsOccupational activity type is related to overall sedentary time and patterns on working days, but not to leisure-time sitting and activity patterns, which were similar across the sitting, standing, walking, and physical labour occupational activity types.

scholarly journals Ten-year change in sedentary behaviour, moderate-to-vigorous physical activity, cardiorespiratory fitness and cardiometabolic risk: independent associations and mediation analysis

2016 ◽  
Vol 52 (16) ◽  
pp. 1063-1068 ◽  
Author(s):  
Sara Knaeps ◽  
Jan G Bourgois ◽  
Ruben Charlier ◽  
Evelien Mertens ◽  
Johan Lefevre ◽  
...  
Keyword(s):  
Physical Activity ◽  
Waist Circumference ◽  
Sedentary Behaviour ◽  
Cardiorespiratory Fitness ◽  
Cardiometabolic Risk ◽  
Fasting Glucose ◽  
Vigorous Physical Activity ◽  
Hdl Cholesterol ◽  
Cardiometabolic Health ◽  
Mediation Effects

BackgroundWe aimed to study the independent associations of 10-year change in sedentary behaviour (SB), moderate-to-vigorous physical activity (MVPA) and objectively measured cardiorespiratory fitness (CRF), with concurrent change in clustered cardiometabolic risk and its individual components (waist circumference, fasting glucose, high-density lipoprotein (HDL) cholesterol, triglycerides and blood pressure). We also determined whether associations were mediated by change in CRF (for SB and MVPA), waist circumference (for SB, MVPA and CRF) and dietary intake (for SB).MethodsA population-based sample of 425 adults (age (mean±SD) 55.83±9.40; 65% men) was followed prospectively for 9.62±0.52 years. Participants self-reported SB and MVPA and performed a maximal cycle ergometer test to estimate peak oxygen uptake at baseline (2002–2004) and follow-up (2012–2014). Multiple linear regression and the product of coefficients method were used to examine independent associations and mediation effects, respectively.ResultsGreater increase in SB was associated with more detrimental change in clustered cardiometabolic risk, waist circumference, HDL cholesterol and triglycerides, independently of change in MVPA. Greater decrease in MVPA was associated with greater decrease in HDL cholesterol and increase in clustered cardiometabolic risk, waist circumference and fasting glucose, independent of change in SB. Greater decrease in CRF was associated with more detrimental change in clustered cardiometabolic risk and all individual components. Change in CRF mediated the associations of change in SB and MVPA with change in clustered cardiometabolic risk, waist circumference and, only for MVPA, HDL cholesterol. Change in waist circumference mediated the associations between change in CRF and change in clustered cardiometabolic risk, fasting glucose, HDL cholesterol and triglycerides.ConclusionsA combination of decreasing SB and increasing MVPA, resulting in positive change in CRF, is likely to be most beneficial towards cardiometabolic health.

scholarly journals Association between device measured and self-reported sitting in relation to depression: the 1970 British Cohort Study

2020 ◽  
Author(s):  
Andrew Webster ◽  
G David Batty ◽  
Natalie Pearson ◽  
Emmanuel Stamatakis ◽  
Mark Hamer
Keyword(s):  
Physical Activity ◽  
Cohort Study ◽  
Depressive Symptoms ◽  
Sedentary Behaviour ◽  
Vigorous Physical Activity ◽  
Sitting Time ◽  
Tv Viewing ◽  
Depression Diagnosis ◽  
Sedentary Behaviours ◽  
British Cohort Study

AbstractAimsWhile physical activity appears to confer protection against depression, the relationship between sedentary behaviour and mental health is uncertain. Self-reported methods provide information about context although there may be error in the quantification of sedentary behaviour. Accordingly, we examined associations of both device-measured and self-reported sedentary behaviour with depression.MethodParticipants (n=4,704; 52.4% Female; aged 46-48) were drawn from the 1970 British Cohort Study. Sitting time and moderate-vigorous physical activity was measured using a thigh-worn accelerometer device (ActivPAL) over a seven day period. A range of self-reported sedentary behaviours was measured to provide context. Depression diagnosis was captured using a combination of self-reported consultation with a physician and use of anti-depressant medication. Malaise inventory was used to assess depressive symptoms.ResultsRelative to those who spent <8 hr/d sitting, those in the highest tertile of device measured sitting (>10 hr/d) had increased odds of depression diagnosis (odds ratio= 1.48 [95% confidence interval 1.05-2.08]). There was no association between self-reported TV viewing and depression diagnosis (1.07; 0.71-1.63). We observed protective associations between moderate-vigorous physical activity and depression diagnosis (highest tertile vs. the lowest tertile; 0.70;0.49-1.00). Associations of sitting time and physical activity with depression were mutually independent. Relative to <1 hours of internet usage, 2-3 and >3 hours of internet weekday usage were associated with increased odds of depressive symptoms (1.60;1.30-1.97 and 1.63;1.32-2.03, respectively).ConclusionDevice-measured sitting is associated depression diagnosis, although less consistent associations are observed with self-reported sedentary behaviours. Regular physical activity and reducing sedentary time may be beneficial for prevention of depression.

Physiological and health implications of a sedentary lifestyle

2010 ◽  
Vol 35 (6) ◽  
pp. 725-740 ◽  
Author(s):  
Mark Stephen Tremblay ◽  
Rachel Christine Colley ◽  
Travis John Saunders ◽  
Genevieve Nissa Healy ◽  
Neville Owen
Keyword(s):  
Physical Activity ◽  
Health Outcomes ◽  
Sedentary Behaviour ◽  
Vigorous Physical Activity ◽  
Exercise Physiology ◽  
Self Report ◽  
Future Research ◽  
Major Health ◽  
Sedentary Behaviours ◽  
Key Terms

Sedentary behaviour is associated with deleterious health outcomes, which differ from those that can be attributed to a lack of moderate to vigorous physical activity. This has led to the field of “sedentary physiology”, which may be considered as separate and distinct from exercise physiology. This paper gives an overview of this emerging area of research and highlights the ways that it differs from traditional exercise physiology. Definitions of key terms associated with the field of sedentary physiology and a review of the self-report and objective methods for assessing sedentary behaviour are provided. Proposed mechanisms of sedentary physiology are examined, and how they differ from those linking physical activity and health are highlighted. Evidence relating to associations of sedentary behaviours with major health outcomes and the population prevalence and correlates of sedentary behaviours are reviewed. Recommendations for future research are proposed.

scholarly journals Impact of the Home Confinement Related to COVID-19 on the Device-Assessed Physical Activity and Sedentary Patterns of Spanish Older Adults

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Ángel I. Fernández-García ◽  
Jorge Marin-Puyalto ◽  
Alba Gómez-Cabello ◽  
Ángel Matute-Llorente ◽  
Jorge Subías-Perié ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Sedentary Behaviour ◽  
Repeated Measures ◽  
Sedentary Time ◽  
Exercise Program ◽  
Sedentary Behaviours ◽  
Home Based ◽  
Phase 0 ◽  
Sedentary Bouts

The main objective of this study was to device-assess the levels of physical activity and sedentary behaviour patterns of older adults during the situation prior to the COVID-19 pandemic, home confinement, and phase-0 of the deescalation. We also aimed to analyse the effectiveness of an unsupervised home-based exercise routine to counteract the potential increase in sedentary behaviour during the periods within the pandemic. A total of 18 noninstitutionalized older adults( 78.4 ± 6.0  y.), members of the Spanish cohort of the EXERNET-Elder 3.0 project, participated in the study. They were recommended to perform an exercise prescription based on resistance, balance, and aerobic exercises during the pandemic. Wrist triaxial accelerometers (ActiGraph GT9X) were used to assess the percentage of sedentary time, physical activity, sedentary bouts and breaks of sedentary time. An ANOVA for repeated measures was performed to analyse the differences between the three different periods. During home quarantine, older adults spent more time in sedentary behaviours ( 71.6 ± 5.3 % ) in comparison with either the situation prior to the pandemic ( 65.5 ± 6.7 % ) or the ending of isolation ( 67.7 ± 7.1 % ) (all p < 0.05 ). Moreover, participants performed less bouts of physical activity and with a shorter duration during home quarantine (both p < 0.05 ). Additionally, no differences in the physical activity behaviours were found between the situation prior to the pandemic and the phase-0 of deescalation. According to our results, the home confinement could negatively affect health due to increased sedentary lifestyle and the reduction of physical activity. Therefore, our unsupervised exercise program does not seem to be a completely effective strategy at least in this period.

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