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Related Concept Videos

Asthma-I: Introduction01:29

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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
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Asthma-II: Pathophysiology and Classification01:26

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Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
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Asthma-IV: Diagnostic and Management01:30

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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
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Longitudinal Research02:20

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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Related Experiment Video

Updated: Feb 28, 2026

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
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Physical activity and asthma: A longitudinal and multi-country study.

Melissa A Russell1,2, Christer Janson3, Francisco Gómez Real4,5

  • 1a Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population and Global Health , University of Melbourne , Melbourne , Australia.

The Journal of Asthma : Official Journal of the Association for the Care of Asthma
|June 22, 2017
PubMed
Summary

Regular light physical activity may reduce asthma risk in middle-aged adults. Vigorous activity showed no significant benefit, and effects varied with body mass index (BMI).

Keywords:
AdultRHINEasthmaphysical exercise

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Area of Science:

  • Respiratory Health
  • Epidemiology
  • Public Health

Background:

  • Asthma prevalence and management in middle-aged adults remain significant public health concerns.
  • The role of physical activity in asthma outcomes requires further investigation, particularly in diverse populations.
  • Understanding the interplay between physical activity, body mass index (BMI), and asthma is crucial for targeted interventions.

Purpose of the Study:

  • To examine the longitudinal and cross-sectional associations between physical activity and asthma in middle-aged adults.
  • To investigate the impact of different intensities of physical activity (light vs. vigorous) on asthma incidence and symptoms.
  • To explore potential modifying effects of Body Mass Index (BMI) on the relationship between physical activity and asthma.

Main Methods:

  • Utilized data from the Respiratory Health in Northern Europe (RHINE) study, a population-based cohort.
  • Employed longitudinal analysis (n=1782) and multi-centre cross-sectional analysis (n=13,542) of self-reported physical activity, asthma, and BMI.
  • Applied logistic regression, zero-inflated Poisson regression, and mixed-effects models to assess associations.

Main Results:

  • Longitudinal analysis indicated that light physical activity (≥3 times/week) at baseline was associated with reduced follow-up asthma (OR 0.44, 95% CI 0.22-0.89).
  • No significant association was found for vigorous physical activity (OR 1.22, 95% CI 0.44-2.76), and these associations were attenuated after BMI adjustment.
  • Cross-sectional analysis revealed a significant interaction between physical activity and BMI categories concerning asthma prevalence and symptoms.

Conclusions:

  • Lighter physical activity may confer longer-term benefits for asthma management in middle-aged adults.
  • Increasing the intensity of physical activity did not demonstrate a clear improvement in asthma outcomes.
  • The impact of physical activity on asthma appears to be modulated by an individual's Body Mass Index (BMI).