Exercise-Induced Bronchoconstriction Management Protocol
Primary Stack
Core supplements with strongest evidenceMay reduce exercise-induced bronchoconstriction severity; antioxidant that protects airways
Anti-inflammatory; may reduce airway inflammation and bronchoconstriction severity
Supporting Stack
Additional supplements for enhanced resultsMild bronchodilator; may reduce EIB severity when taken before exercise
Supporting Studies (1)
Supports immune function; deficiency associated with worse asthma/EIB outcomes
Supporting Studies (1)
Antioxidant; some studies show reduced EIB severity
Supporting Studies (1)
Bronchodilator properties; supports smooth muscle relaxation
Supporting Studies (1)
How This Protocol Works
Simple Explanation
Exercise-induced bronchoconstriction (EIB), also known as hyperpnea-induced bronchoconstriction, is a temporary narrowing of the airways that occurs during or after exercise. It affects about 10-15% of the general population and up to 90% of people with asthma.
WHAT HAPPENS:
During intense exercise, rapid breathing causes the airways to cool and dry out. This triggers inflammation and muscle spasm in the airways, making it harder to breathe.
SYMPTOMS:
TIMING:
TRIGGERS:
STANDARD TREATMENT:
EXERCISE MODIFICATIONS:
* Omega-3 fatty acids may reduce airway inflammation.
* Vitamin C taken before exercise may reduce EIB severity.
* Caffeine has mild bronchodilator effects.
Expected timeline: Supplements taken regularly may reduce EIB severity over weeks. Pre-exercise supplements (vitamin C, caffeine) work acutely.
Clinical Perspective
Exercise-Induced Bronchoconstriction (EIB)/Hyperpnea-Induced Bronchoconstriction: Transient airway narrowing triggered by exercise. Mechanism: airway dehydration from hyperpnea, cooling, inflammatory mediator release, smooth muscle contraction. Prevalence: 10-15% general population; 40-90% of asthmatics. Diagnosis: exercise challenge test with spirometry (>=10-15% fall in FEV1).
CRITICAL: SABA (albuterol) 15-20 min pre-exercise is gold standard prevention - highly effective. Daily controller (ICS) if frequent EIB or underlying asthma. Warm-up induces refractory period. Leukotriene receptor antagonists (montelukast) alternative. Supplements are adjunctive - may reduce severity but don't replace medications. Athletes: check WADA/anti-doping regulations for all substances.
* Vitamin C (B-grade): Airway protection. Meta-analysis: (PMID: 23075608). 500-1500mg 1 hour before exercise.
* Omega-3 Fatty Acids (B-grade): Anti-inflammatory. Systematic review: (PMID: 27840029). 3-5g EPA+DHA daily.
* Caffeine (B-grade): Bronchodilator. Review: (PMID: 21224234). 3-6mg/kg 1 hour before exercise. Check sport regulations.
* Vitamin D (C-grade): Respiratory health. Systematic review: (PMID: 28750270). 2000-4000 IU daily.
* Lycopene (C-grade): Antioxidant. Pilot study: (PMID: 23075608). 30mg daily.
* Magnesium (C-grade): Bronchodilator. Review: (PMID: 28445426). 300-400mg daily.
Assessment targets: FEV1 fall with exercise challenge, symptom frequency, exercise tolerance, rescue inhaler use.
Protocol notes: Diagnosis: objective testing important - many EIB cases are missed or overdiagnosed; eucapnic voluntary hyperventilation (EVH) test gold standard; exercise challenge alternative. SABA: albuterol 2 puffs 15-20 min before exercise; works 80-90% of cases; can repeat during prolonged exercise. Warm-up: 10-15 min variable intensity; induces ~2 hour refractory period; exploit for competition. Cold air: biggest trigger; face mask/scarf very helpful. Swimming: warm humid air; often well-tolerated; chlorine can irritate. ICS: daily inhaled corticosteroid reduces EIB in underlying asthma; takes 2-4 weeks. LTRA: montelukast daily reduces EIB; alternative for those preferring oral med. Combination: ICS+LABA for underlying asthma. Anti-doping: all medications/supplements must be checked; SABA permitted in most sports (may need TUE); caffeine permitted but monitored. Vocal cord dysfunction: mimic EIB; consider if not responding to treatment; laryngoscopy during symptoms. Poor fitness: can masquerade as EIB; fitness improves ventilatory threshold.