Objectively Measured Physical Activity and Sedentary Time during Childhood, Adolescence and Young Adulthood: A Cohort Study

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

Background

To know how moderate-to-vigorous physical activity (MVPA) and sedentary time change across lifespan periods is needed for designing successful lifestyle interventions. We aimed to study changes in objectively measured (accelerometry) MVPA and sedentary time from childhood to adolescence and from adolescence to young adulthood.

Methods

Estonian and Swedish participants from the European Youth Heart Study aged 9 and 15 years at baseline (N = 2312) were asked to participate in a second examination 6 (Sweden) to 9/10 (Estonia) years later. 1800 participants with valid accelerometer data were analyzed.

Results

MVPA decreased from childhood to adolescence (−1 to −2.5 min/d per year of follow-up, P = 0.01 and <0.001, for girls and boys respectively) and also from adolescence to young adulthood (−0.8 to −2.2 min/d per year, P = 0.02 and <0.001 for girls and boys, respectively). Sedentary time increased from childhood to adolescence (+15 and +20 min/d per year, for girls and boys respectively, P<0.001), with no substantial change from adolescence to young adulthood. Changes in both MVPA and sedentary time were greater in Swedish than in Estonian participants and in boys than in girls. The magnitude of the change observed in sedentary time was 3–6 time larger than the change observed in MVPA.

Conclusions

The decline in MVPA (overall change = 30 min/d) and increase sedentary time (overall change = 2∶45 h/d) observed from childhood to adolescence are of concern and might increase the risk of developing obesity and other chronic diseases later in life. These findings substantially contribute to understand how key health-related behaviors (physical activity and sedentary) change across important periods of life.

Related collections

Most cited references 26

Record: found
Abstract: found
Article: not found

Objectively measured sedentary time, physical activity, and metabolic risk: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab).

Genevieve N Healy, Katrien Wijndaele, David Dunstan … (2008)

We examined the associations of objectively measured sedentary time and physical activity with continuous indexes of metabolic risk in Australian adults without known diabetes. An accelerometer was used to derive the percentage of monitoring time spent sedentary and in light-intensity and moderate-to-vigorous-intensity activity, as well as mean activity intensity, in 169 Australian Diabetes, Obesity and Lifestyle Study (AusDiab) participants (mean age 53.4 years). Associations with waist circumference, triglycerides, HDL cholesterol, resting blood pressure, fasting plasma glucose, and a clustered metabolic risk score were examined. Independent of time spent in moderate-to-vigorous-intensity activity, there were significant associations of sedentary time, light-intensity time, and mean activity intensity with waist circumference and clustered metabolic risk. Independent of waist circumference, moderate-to-vigorous-intensity activity time was significantly beneficially associated with triglycerides. These findings highlight the importance of decreasing sedentary time, as well as increasing time spent in physical activity, for metabolic health.

0 comments Cited 365 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Moderate-to-vigorous physical activity from ages 9 to 15 years.

Philip R. Nader, Robert Bradley, Renate Houts … (2008)

Decreased physical activity plays a critical role in the increase in childhood obesity. Although at least 60 minutes per day of moderate-to-vigorous physical activity (MVPA) is recommended, few longitudinal studies have determined the recent patterns of physical activity of youth. To determine the patterns and determinants of MVPA of youth followed from ages 9 to 15 years. Longitudinal descriptive analyses of the 1032 participants in the 1991-2007 National Institute of Child Health and Human Development Study of Early Child Care and Youth Development birth cohort from 10 study sites who had accelerometer-determined minutes of MVPA at ages 9 (year 2000), 11 (2002), 12 (2003), and 15 (2006) years. Participants included boys (517 [50.1%]) and girls (515 [49.9%]); 76.6% white (n = 791); and 24.5% (n = 231) lived in low-income families. Mean MVPA minutes per day, determined by 4 to 7 days of monitored activity. At age 9 years, children engaged in MVPA approximately 3 hours per day on both weekends and weekdays. Weekday MVPA decreased by 37 minutes per year [corrected], while weekend MVPA decreased by 39 minutes per year [corrected]. By age 15 years, adolescents were only engaging in MVPA for 50 minutes per weekday [corrected] and 36 minutes per weekend day [corrected]. Boys were more active than girls, spending 18 and 14 more minutes per day [corrected] in MVPA on the weekdays and weekends, respectively. The rate of decrease in MVPA was the same for boys and girls. The estimated age at which girls crossed below the recommended 60 minutes of MVPA per day was approximately 13.2 years for weekday [corrected] activity compared with boys at 14.9 years [corrected], and for weekend activity, girls crossed below the recommended 60 minutes of MVPA at 12.7 years [corrected] compared with boys at 13.6 years [corrected]. In this study cohort, measured physical activity decreased significantly between ages 9 and 15 years.

0 comments Cited 320 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Television viewing time and mortality: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab).

D Dunstan, E. L. M. Barr, G Healy … (2010)

Television viewing time, the predominant leisure-time sedentary behavior, is associated with biomarkers of cardiometabolic risk, but its relationship with mortality has not been studied. We examined the associations of prolonged television viewing time with all-cause, cardiovascular disease (CVD), cancer, and non-CVD/noncancer mortality in Australian adults. Television viewing time in relation to subsequent all-cause, CVD, and cancer mortality (median follow-up, 6.6 years) was examined among 8800 adults > or =25 years of age in the Australian Diabetes, Obesity and Lifestyle Study (AusDiab). During 58 087 person-years of follow-up, there were 284 deaths (87 CVD deaths, 125 cancer deaths). After adjustment for age, sex, waist circumference, and exercise, the hazard ratios for each 1-hour increment in television viewing time per day were 1.11 (95% confidence interval [CI], 1.03 to 1.20) for all-cause mortality, 1.18 (95% CI, 1.03 to 1.35) for CVD mortality, and 1.09 (95% CI, 0.96 to 1.23) for cancer mortality. Compared with a television viewing time of or =2 to or =4 h/d. For CVD mortality, corresponding hazard ratios were 1.19 (95% CI, 0.72 to 1.99) and 1.80 (95% CI, 1.00 to 3.25). The associations with both cancer mortality and non-CVD/noncancer mortality were not significant. Television viewing time was associated with increased risk of all-cause and CVD mortality. In addition to the promotion of exercise, chronic disease prevention strategies could focus on reducing sitting time, particularly prolonged television viewing.

0 comments Cited 240 times – based on 0 reviews      Review now

Bookmark

All references

Author and article information

Contributors

Reury F. P. Bacurau: Role: Editor

Journal

Journal ID (nlm-ta): PLoS One

Journal ID (iso-abbrev): PLoS ONE

Journal ID (publisher-id): plos

Journal ID (pmc): plosone

Title: PLoS ONE

Publisher: Public Library of Science (San Francisco, USA )

ISSN (Electronic): 1932-6203

Publication date Collection: 2013

Publication date (Electronic): 23 April 2013

Volume: 8

Issue: 4

Electronic Location Identifier: e60871

Affiliations

[1 ]“PROmoting FITness and Health through physical activity” research group, Department of Physical Education and Sports, School of Sport Sciences, University of Granada, Granada, Spain

[2 ]Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Stockholm, Sweden

[3 ]Department of Chronic Diseases, Centre of Behavioural and Health Sciences, National Institute for Health Development, Tallinn, Estonia

[4 ]Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Tartu, Estonia

[5 ]Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy

[6 ]School of Health and Medical Sciences/Clinical Medicine, Örebro University, Örebro, Sweden

[7 ]Department of Coaching Sciences, Faculty of Exercise and Sport Sciences, Centre of Behavioral and Health Sciences, University of Tartu, Tartu, Estonia

[8 ]Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden

[9 ]Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy

[10 ]Department of Nutrition and Food Science, University of the Basque Country, Universidad del País Vasco/European Humanities University, Vitoria, Spain

[11 ]National Institute for Health Development, Centre of Behavioural and Health Sciences, Tallinn, Estonia

University of Sao Paulo, Brazil

Author notes

* E-mail: ortegaf@ 123456ugr.es

Competing Interests: The authors have declared that no competing interests exist.

Conceived and designed the experiments: MS TV JH. Performed the experiments: FBO KK EP JRR AHW JM ML JH RB IL TV MS. Analyzed the data: EP RB FBO. Contributed reagents/materials/analysis tools: FBO KK EP JRR AHW JM ML JH RB IL TV MS. Wrote the paper: FBO.

Article

Publisher ID: PONE-D-13-03025

DOI: 10.1371/journal.pone.0060871

PMC ID: 3634054

PubMed ID: 23637772

SO-VID: 5f25293b-fad2-4076-a608-f4ff662b85aa

License:

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

History

Date received : 17 January 2013

Date accepted : 4 March 2013

Page count

Pages: 8

Funding

This study was also supported by grants from the Estonian Ministry of Education and Science (No 0180027 and 0942706) and the Estonian Science Foundation (No 6932 and 6788). The study was supported by grants from the Stockholm County Council. This study is also being supported by grants from Spanish Ministry of Economy and Competitiveness (RYC-2010-05957; RYC-2011-09011). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Objectively Measured Physical Activity and Sedentary Time during Childhood, Adolescence and Young Adulthood: A Cohort Study

Read this article at

Abstract

Background

Methods

Results

Conclusions

Related collections

PLOS Climate

Most cited references 26

Objectively measured sedentary time, physical activity, and metabolic risk: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab).

Moderate-to-vigorous physical activity from ages 9 to 15 years.

Television viewing time and mortality: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab).

Author and article information

Contributors

Journal

Affiliations

Author notes

Article

History

Page count

Funding

Categories

Comments

Comment on this article

Similar content 319

Cited by 97

Most referenced authors 726