The DOI matches its Crossref record; 74 of the 74 references it cites were found in a registry or an index.
Objectively Measured Physical Activity and Sedentary Time in European Adolescents: The HELENA Study
Abstract
The authors' aim in this cross-sectional study was to characterize levels of objectively measured physical activity and sedentary time in adolescents from 9 European countries. The study comprised 2,200 European adolescents (1,184 girls) participating in the HELENA cross-sectional study (2006-2008). Physical activity was measured by accelerometry and was expressed as average intensity (counts/minute) and amount of time (minutes/day) spent engaging in moderate- to vigorous-intensity physical activity (MVPA). Time spent in sedentary behaviors was also objectively measured. Cardiorespiratory fitness was measured by means of the 20-m shuttle run test. Level of maternal education was reported by the adolescents. A higher proportion of boys (56.8% of boys vs. 27.5% of girls) met the physical activity recommendations of at least 60 minutes/day of MVPA. Adolescents spent most of the registered time in sedentary behaviors (9 hours/day, or 71% of the registered time). Both average intensity and MVPA were higher in adolescents with high cardiorespiratory fitness, and sedentary time was lower in the high-fitness group. There were no physical activity or sedentary time differences between maternal education categories. These data provide an objective measure of physical activity and amount of time spent in sedentary behaviors in a relatively large number of European adolescents.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Establishing a standard definition for child overweight and obesity worldwide: international survey
Cole, T. J. (2000) · BMJ · doi:10.1136/bmj.320.7244.1240 · Cited by 16,480
Physical Activity in the United States Measured by Accelerometer
TROIANO, R. P., BERRIGAN, D., DODD, K. W., MÂSSE, L. C., TILERT, T., & MCDOWELL, M. (2008) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0b013e31815a51b3 · Cited by 7,638
Janssen, I., & LeBlanc, A. G. (2010) · International Journal of Behavioral Nutrition and Physical Activity · doi:10.1186/1479-5868-7-40 · Cited by 4,829
Evidence Based Physical Activity for School-age Youth
Strong, W. B., Malina, R. M., Blimkie, C. J. R., Daniels, S. R., Dishman, R. K., Gutin, B., Hergenroeder, A. C., Must, A., Nixon, P. A., Pivarnik, J. M., et al. (2005) · The Journal of Pediatrics · doi:10.1016/j.jpeds.2005.01.055 · Cited by 4,222
Tanner, J. M., & Whitehouse, R. H. (1976) · Archives of Disease in Childhood · doi:10.1136/adc.51.3.170 · Cited by 3,137
Physical fitness in childhood and adolescence: a powerful marker of health
Ortega, F. B., Ruiz, J. R., Castillo, M. J., & Sjöström, M. (2008) · International Journal of Obesity · doi:10.1038/sj.ijo.0803774 · Cited by 2,813
Self-citationAmount of Time Spent in Sedentary Behaviors in the United States, 2003-2004
Matthews, C. E., Chen, K. Y., Freedson, P. S., Buchowski, M. S., Beech, B. M., Pate, R. R., & Troiano, R. P. (2008) · American Journal of Epidemiology · doi:10.1093/aje/kwm390 · Cited by 2,631
The multistage 20 metre shuttle run test for aerobic fitness
Léger, L. A., Mercier, D., Gadoury, C., & Lambert, J. (1988) · Journal of Sports Sciences · doi:10.1080/02640418808729800 · Cited by 2,533
Too Much Sitting: The Population Health Science of Sedentary Behavior
Owen, N., Healy, G. N., Matthews, C. E., & Dunstan, D. W. (2010) · Exercise and Sport Sciences Reviews · doi:10.1097/jes.0b013e3181e373a2 · Cited by 2,202
Winkleby, M. A., Jatulis, D. E., Frank, E., & Fortmann, S. P. (1992) · American Journal of Public Health · doi:10.2105/ajph.82.6.816 · Cited by 2,048
Cited by
Poitras, V. J., Gray, C. E., Borghese, M. M., Carson, V., Chaput, J.-P., Janssen, I., Katzmarzyk, P. T., Pate, R. R., Connor Gorber, S., Kho, M. E., et al. (2016) · Applied Physiology, Nutrition, and Metabolism · doi:10.1139/apnm-2015-0663 · Cited by 2,217
Ortega, F. B., Konstabel, K., Pasquali, E., Ruiz, J. R., Hurtig-Wennlöf, A., Mäestu, J., Löf, M., Harro, J., Bellocco, R., Labayen, I., et al. (2013) · PLoS ONE · doi:10.1371/journal.pone.0060871 · Cited by 281
Self-citationBartholomew, K. J., Ntoumanis, N., Mouratidis, A., Katartzi, E., Thøgersen-Ntoumani, C., & Vlachopoulos, S. (2018) · Learning and Instruction · doi:10.1016/j.learninstruc.2017.07.006 · Cited by 249
Objectively measured physical activity in European children: the IDEFICS study
on behalf of the IDEFICS consortium, Konstabel, K., Veidebaum, T., Verbestel, V, Moreno, L. A., Bammann, K., Tornaritis, M., Eiben, G., Molnár, D., Siani, A., et al. (2014) · International Journal of Obesity · doi:10.1038/ijo.2014.144 · Cited by 236
Self-citationHjorth, M. F., Chaput, J.-P., Michaelsen, K., Astrup, A., Tetens, I., & Sjödin, A. (2013) · BMC Public Health · doi:10.1186/1471-2458-13-808 · Cited by 143
Metadata
- Authors
- Ruiz, J. R., Ortega, F. B., Martinez-Gomez, D., Labayen, I., Moreno, L. A., De Bourdeaudhuij, I., Manios, Y., Gonzalez-Gross, M., Mauro, B., Molnar, D., Widhalm, K., Marcos, A., Beghin, L., Castillo, M. J., Sjostrom, M., & on behalf of the HELENA Study Group
- Venue
- American Journal of Epidemiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2011-04-05
- Volume
- 174
- Issue
- 2
- Pages
- 173-184
- ISSN
- 0002-9262 (ISSN-L)
- 1476-6256
- OpenAlex
- W2155517601
- Cited by
- 331
- References
- 74
- FWCI
- 17.14
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Objectively Measured Physical Activity and Sedentary Time in European Adolescents: The HELENA Study. https://app.cochat.ai/papers/10.1093/aje/kwr068
- The paper
- Ruiz, J. R., Ortega, F. B., Martinez-Gomez, D., Labayen, I., Moreno, L. A., De Bourdeaudhuij, I., Manios, Y., Gonzalez-Gross, M., Mauro, B., Molnar, D., Widhalm, K., Marcos, A., Beghin, L., Castillo, M. J., Sjostrom, M., & on behalf of the HELENA Study Group. (2011). Objectively Measured Physical Activity and Sedentary Time in European Adolescents: The HELENA Study. American Journal of Epidemiology. https://doi.org/10.1093/aje/kwr068
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
