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Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
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Self-Reported Physical Activity and Asthma Risk in Children.
Kim Lu1, Margo Sidell2, Xia Li2
1Department of Pediatrics and Pediatric Exercise and Genomics Research Center, University of California, Irvine, Calif.
The Journal of Allergy and Clinical Immunology. in Practice
|September 18, 2021
Summary
Physical activity (PA) can protect against asthma, but high levels may increase risk. Increasing moderate-to-vigorous PA (MVPA) in children with low activity is linked to lower asthma risk.
Area of Science:
- Pediatric Health
- Respiratory Medicine
- Exercise Science
Background:
- Physical activity (PA) is recognized for potential asthma protection.
- However, PA can also precipitate asthma symptoms in affected individuals.
Purpose of the Study:
- To examine the association between moderate-to-vigorous physical activity (MVPA) and incident asthma in children.
- To assess MVPA during routine healthcare visits as a potential indicator for asthma risk.
Main Methods:
- Retrospective cohort study of 542,486 children aged 2–17 years (2010–2017).
- MVPA assessed via the 'exercise vital sign' during routine care.
- Cox proportional hazards regression models analyzed the association of MVPA and asthma, adjusting for covariates.
Main Results:
- Children engaging in 4–7 hours/week of MVPA had the lowest asthma incidence density rate.
- Increased MVPA was associated with reduced asthma risk in children with 0 hours/week of MVPA.
- Children with ≥8 hours/week of MVPA showed an increased asthma risk with further activity increases.
Conclusions:
- Encouraging MVPA in low-activity children may lower asthma risk.
- High levels of MVPA might be associated with increased asthma risk in some children.
- Routine MVPA assessment can inform targeted asthma interventions and management strategies.
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