Expert: Dr. Gary Mak - Specialist in cardiology and President of the Hong Kong Association of Sports Medicine and Sports Science
- DON’T stop abruptly after running; a long and slow cool-down period is important.
- Abrupt stopping will put the heart under high stress as it will aggravate the imbalance between sympathetic nervous system and parasympathetic system, which are responsible for the exercise and cool-down of our bodies. Abrupt stopping might trigger either one of the following situations:
- Sympathetic nervous system, which functions to increase heart rate to support the body for exercise, might become persistently hyperactivity and causes arrhythmia or even sudden death.
- Parasympathetic system, which functions to restore normal heart rate after exercise, might act too quickly and causes low blood pressure and slow heart rate which in turn triggers vasovagal syncope.