Summer Heat Injuries in Taiwan: Emergency Response for Runner Heatstroke and Heat Exhaustion

Introduction

The high temperature and humidity conditions of Taiwan’s summer pose a major challenge for runners. Every year from June to September, heat injury cases occur at major road races and training venues across the island, ranging from mild heat cramps to heat stroke requiring immediate emergency care—threats that runners in Taiwan cannot afford to ignore. In particular, southern cities such as Tainan and Kaohsiung often experience apparent temperatures exceeding 40°C in summer, and a single moment of carelessness can lead to serious consequences.

Classification and Recognition of Heat Injuries

Four Levels of Heat Injury

Key Distinction: The biggest difference between heat exhaustion and heat stroke lies in state of consciousness and core body temperature. Patients with heat stroke are confused and unable to communicate, and must be treated immediately as a medical emergency.

On-Site Emergency Response

On-Site Management of Heat Exhaustion

1. Immediately move to a shaded area: Transfer to an air-conditioned or shaded environment
2. Lie flat with legs elevated: Promote blood return to the heart and prevent fainting
3. Replenish electrolyte drinks: If conscious, administer orally in small, frequent amounts (do not chug large volumes at once)
4. Physical cooling: Apply cold, wet towels to the neck, armpits, and groin (areas with concentrated major blood vessels)
5. Monitor symptoms: If there is no improvement within 30 minutes or the state of consciousness changes, call 119 immediately

Emergency Management of Heat Stroke (Every Second Counts)

The golden rule for heat stroke is: Cool first, transport second

1. Call 119 immediately, and begin cooling without waiting for rescue
2. Cold water immersion: If a tub or pool is available on site, immerse the patient up to the neck in cold water (most ideal)
3. Ice packs on major blood vessels: Place ice packs generously on the carotid arteries, armpits, and groin
4. Continuous water spraying and fanning: Evaporative cooling is highly effective
5. Goal: Lower body temperature below 38.5°C within 30 minutes
6. Do NOT: Administer fever-reducing medication (such as ibuprofen), or force fluids (the patient may no longer be able to swallow)

Scientific Strategies for Summer Running in Taiwan

Heat Acclimatization

Research shows that after regularly training in hot conditions for 10–14 days, the body undergoes significant physiological adaptations:

• Plasma volume increases by 10%, improving cardiac output efficiency
• Sweating efficiency improves, enhancing thermoregulation
• Electrolyte loss rate decreases

Heat Acclimatization Plan for Runners in Taiwan:

• Days 1–3: Run only before 6:00 AM or after 6:00 PM to reduce direct sun exposure
• Days 4–7: Gradually shift some training to hotter periods (4–5 PM), but reduce intensity by 30%
• Days 8–14: Easy runs can be performed during hotter periods to allow full adaptation

Hydration Strategy

• Pre-run hydration: Drink 500mL of water 2 hours before running; drink 250mL 30 minutes before running
• During-run hydration: Replenish 150–200mL every 15–20 minutes; switch to electrolyte drinks for exercise exceeding 60 minutes
• Post-run hydration: For every 1kg of body weight lost, replenish 1.5L of fluid (including plain water and sodium-containing beverages)
• Caution: Do not overhydrate (risk of hyponatremia); use thirst as the hydration cue

Application of the WBGT Index

Wet Bulb Globe Temperature (WBGT) is the international standard for assessing the safety of running in hot environments:

The weather bureaus of all counties and cities in Taiwan provide real-time WBGT data; runners are advised to check before heading out in summer.

Special Attention for High-Risk Groups

• Individuals with hypertension or heart disease: The cardiac load is heavier in hot environments; high-intensity training should be avoided in summer
• Those taking diuretics or certain cardiovascular medications: These reduce thermoregulatory capacity and require extra caution
• Overweight individuals: Relatively insufficient heat dissipation surface area means core temperature rises faster
• Those with insufficient sleep from the previous night: Lack of sleep significantly reduces heat tolerance

Conclusion

Heat injuries are preventable—the key lies in respecting environmental conditions and not fighting the weather. Summer running in Taiwan is indeed challenging, but through a scientific heat acclimatization plan, proper hydration strategies, and switching to indoor treadmill training during extreme weather, you can still maintain training consistency through the summer and prepare safely for the autumn and winter marathon season in the second half of the year.

Related Reading

• Heat Injury in Taiwan’s Summer Running: Prevention and Emergency Management of Heat Stroke and Heat Exhaustion
• High-Temperature Heat Stroke Warnings and Rescue: The Red Line Guide for Runners’ Summer Training
• Heat Exhaustion and Heat Stroke in Road Running: Safety Guidelines for Taiwan’s Summer Road Races
• Heat Injury Prevention for Cycling: Heat Stroke and Heat Exhaustion Risks of Summer Riding in Taiwan