19/08/2026
Do you know what happens inside your body during a run?
These two workouts look the same, but they change your fitness in different ways!
The secret is a chemical called lactate. Your body creates lactate when you turn food into energy.
Here is how the training works:
ππΏThe Tempo Run (Aerobic Endurance)
β’The Science: Your body produces lactate, but your cells can clear it out quickly. Everything stays in balance.
β’The Effort: About 75% to 85% of your maximum heart rate.
β’The Goal: It trains your muscles to use energy efficiently over long distances.
ππΏThe Threshold Run (Lactate Threshold)
β’The Science: You run right at the exact turning point where your body produces lactate faster than it can remove it.
β’The Effort: About 85% to 90% of your maximum heart rate.
β’The Goal: It helps your body learn how to handle acid buildup in your muscles.
ππΏ The Quick Takeaway:
Tempo runs build your aerobic engine so you can go far. Threshold runs train your body to handle fatigue so you can go fast.
Share this with a running friend who would need to hear this!!
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RUN WITH DANIEL
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