Dr. Robin Lewis, a naturopathic physician in Vancouver, BC, discusses zone 5 cardio.
Zone 5 cardio involves exercising at 90 to 100% of your maximum heart rate.
Common duration: 10-30 seconds of intense effort is sustainable for most individuals.
Type of training often referred to as HIIT (High-Intensity Interval Training) or SIT (Sprint Interval Training).
Maximum heart rate defined as 220 minus your age.
Example: For a 30-year-old, max heart rate is 190; 90% target would be 170 bpm.
Exercise testing gives a more accurate measurement compared to the formula.
Personal experience with Pinoy testing (exercise with gas exchange measurements) provides individual max heart rate assessment.
Average athletes may not achieve the equation-derived maximum heart rate.
VO2 max is an indicator of lung health, heart health, and metabolic efficiency.
High VO2 max correlates with reduced risk of mortality; top 3% in VO2 max have a fivefold lower risk of death compared to lower percentiles.
Measurement of maximum oxygen intake per minute relative to body weight.
Involves determining lung capacity, blood oxygenation, and tissue oxygen consumption.
Healthy lung function, efficient cardiovascular systems, and oxygen-hungry muscles are crucial.
Lung Health: Damaged lungs may reduce VO2 max capacity.
Cardiovascular Health: Effective blood oxygen transport is essential for maximizing VO2 max.
Muscle Health: Strong muscles depend on oxygen for energy; more effective muscles lead to a lower remaining oxygen by the time blood returns to the lungs.
Zone 5 training enhances both the number and function of mitochondria in muscle cells.
Mitochondria are responsible for utilizing sugars and fats for energy, which is critical during intense exercise.
Zone 5 cardio offers substantial health benefits for everyone, not just elite athletes.
Proper monitoring and approach can prevent overtraining and maximize health outcomes.