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Updated: Jun 7, 2026
05:59
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
[Physical activity practice among Brazilian adolescents]
Pedro Curi Hallal1, Alan Goularte Knuth, Danielle Keylla Alencar Cruz
1Escola Superior de Educação Física, Universidade Federal de Pelotas, Pelotas, RS. prchallal@gmail.com
Ciencia & Saude Coletiva
|November 5, 2010
Summary
Brazilian adolescents show low physical activity levels, with only 43.1% meeting the recommended guidelines. Sedentary behavior, like excessive TV watching, is prevalent, highlighting the need for targeted health interventions.
Area of Science:
- Public Health
- Adolescent Health
- Epidemiology
Context:
- The National Adolescent School-based Health Survey (PeNSE) in Brazil, 2009, provides data on adolescent health behaviors.
- Focus on ninth-year students (n=60,973) across all state capitals and the Federal District.
Purpose:
- To describe physical activity practices among Brazilian adolescents.
- Investigate physical activity, including transportation, in-school/out-of-school activities, and Physical Education class participation.
- Establish a baseline for monitoring adolescent physical activity in Brazil.
Summary:
- 43.1% of adolescents were classified as physically active (≥300 min/wk).
- Boys (56.2%) were more active than girls (31.3%).
- Low participation in Physical Education (49.2% had ≥2 classes/week) and high sedentary behavior (79.2% watched TV ≥2 hours/day) were observed.
Impact:
- Highlights a low proportion of active adolescents and regular Physical Education classes.
- Reveals a high prevalence of sedentary behavior among Brazilian youth.
- Suggests an urgent need for interventions to promote physical activity in this demographic.
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