15/03/2024
🏋️Zone 2 or cardiac output training refers to a specific heart rate zone commonly used in cardiovascular training. It typically involves exercising at a moderate intensity where your heart rate falls within a specific range (60-70% of maximum heart rate).
🏋️The benefits of zone 2 cardiovascular training are listed below:
🏋️Cardiovascular Adaptations:
Aerobic Capacity Improvements:
Zone 2 training improves the body's ability to utilize oxygen, crucial for aerobic energy production. This can result in better endurance and sustained exercise performance. This is achieved through a range of physiological processes such as mitochondrial biogenesis, enhanced capillarization, increased enzyme activity, more efficient oxygen extraction from the muscles and improved VO2 max.
🏋️Health Benefits:
Improved Cardiovascular Health: Regular exercise in Zone 2 contributes to overall cardiovascular health by reducing the risk of heart disease, lowering blood pressure, and improving cholesterol levels.
Enhanced Blood Circulation: Increased capillarization and blood flow to muscles support overall circulation and nutrient delivery.
🏋️Performance Enhancement:
Zone 2 training is the foundation for higher-intensity training: Zone 2 forms a foundation for more intense training by building endurance, improving aerobic capacity, and therefore creating a physiological base for higher-intensity efforts. A sound foundation enables a quicker recovery between multiple bursts of sports specific anaerobic activity and enables quicker recovery between training sessions.
🏋️Enhanced Recovery:
Regular and strategic zone 2 is training enhances recovery by improving the efficiency of the aerobic energy system, leading to increased oxygen delivery to muscles. This improved function allows metabolic waste products to be removed more quickly.
Regular aerobic exercise also increases the number and density of capillaries within muscles therefore enhancing oxygen availability and waste removal.
The increased endorphins release after aerobic exercise can reduce muscle soreness and therefore enhance recovery.
With regards to recovery, aerobic exercise may also improve mobility by improving joint lubrication, muscles relaxation and lengthening.
🏋️Take home:
The fitness industry is notorious for promoting fads and extreme interventions. Around 10 to 15 years ago zone 2 and many other forms of cardiovascular training were regarded as the antagonist for resistance training as it ruined gains and stunted performance. Zone 2 is now promoted as the next best thing within the new “longevity/recovery fad” in the fitness industry. Like most forms of training, Zone 2 training when strategically applied has many advantages and can enhance performance, promote health and improve recovery as highlighted above. However, this does not diminish the importance of strength training and other forms of aerobic/anaerobic conditioning within a structured exercise programme.
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