1. What is Running Critical Velocity?

Definition: Critical Velocity (CV) is the minimum running speed at which an athlete can sustain maximal oxygen uptake (VO2 max).

Purpose: It helps runners and coaches determine optimal training intensities for endurance performance.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( CV \) — Critical velocity (meters/second)
• \( D2 \) — Longer distance (meters)
• \( D1 \) — Shorter distance (meters)
• \( T2 \) — Time for D2 (seconds)
• \( T1 \) — Time for D1 (seconds)

Explanation: The difference in distances is divided by the difference in times to determine the sustainable running velocity.

3. Importance of Critical Velocity

Details: CV represents the boundary between heavy and severe exercise intensity domains, helping athletes train at optimal intensities for endurance improvement.

4. Using the Calculator

Tips: Enter two different race distances and their corresponding times. Typically use distances between 1500m-5000m for accurate CV estimation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between CV and lactate threshold?
A: CV is typically slightly higher than lactate threshold and represents a sustainable pace for 30-60 minutes.

Q2: How often should I test my CV?
A: Every 4-6 weeks to monitor training progress and adjust workout intensities.

Q3: Can I use race times for CV calculation?
A: Yes, recent race performances at different distances provide excellent data for CV estimation.

Q4: What's a good critical velocity?
A: This varies by athlete, but elite male distance runners typically have CV > 6.0 m/s, while elite females > 5.5 m/s.

Q5: How can I improve my CV?
A: Through a combination of interval training at CV pace and longer endurance runs below CV.