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Related Concept Videos

Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Asthma-I: Introduction01:29

Asthma-I: Introduction

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...
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

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:
Classification of Asthma
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs

Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Asthma-IV: Diagnostic and Management01:30

Asthma-IV: Diagnostic and Management

The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:

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Related Experiment Video

Updated: Jun 28, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Asthma and swimming: a meta-analysis.

Michael Goodman1, Sean Hays

  • 1Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA. mgoodm2@sph.emory.edu

The Journal of Asthma : Official Journal of the Association for the Care of Asthma
|October 28, 2008
PubMed
Summary

Elite swimmers have higher asthma rates, but swimming may not cause asthma. Childhood swimming exposure showed no significant asthma link, and asthmatics may prefer swimming.

Area of Science:

  • Sports Medicine
  • Pulmonology
  • Epidemiology

Background:

  • Asthma prevalence varies among athletes.
  • The relationship between swimming and asthma is debated.
  • Childhood swimming exposure and exercise-induced bronchospasm are key areas of interest.

Purpose of the Study:

  • To meta-analyze the association between swimming and asthma.
  • To evaluate swimming's impact on asthma severity and pulmonary function.
  • To compare respiratory effects of swimming versus other exercises.

Main Methods:

  • Meta-analysis of studies on swimming and asthma.
  • Categorization into four study groups based on research questions.
  • Use of random effects models for meta-odds ratios and meta-differences.

Related Experiment Videos

Last Updated: Jun 28, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Main Results:

  • Higher asthma frequency observed in elite swimmers (OR 2.3-2.6).
  • No significant association found between childhood swimming and asthma (OR 0.63-0.82).
  • Running/cycling showed a 4-6 fold increase in exercise-induced bronchospasm compared to swimming.

Conclusions:

  • While elite swimmers have higher asthma rates, a causal link is not established.
  • Cross-sectional designs and potential self-selection limit current conclusions.
  • Swimming may be a preferred activity for individuals with asthma.