Critical Velocity Running Calculator

What Is Critical Velocity In Running

Critical Velocity Formula:

\[ CV = \frac{D2 - D1}{T2 - T1} \]

Shorter Distance (D1):

meters

Time for D1:

seconds

Longer Distance (D2):

meters

Time for D2:

seconds

Critical Velocity (m/s):

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1. What Is Critical Velocity In Running?

Definition: Critical Velocity (CV) is the running speed that can theoretically be maintained for a very long time without fatigue. It represents the boundary between heavy and severe exercise intensities.

Purpose: CV helps runners and coaches determine optimal training paces and predict race performance across different distances.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ CV = \frac{D2 - D1}{T2 - T1} \]

Where:

\( CV \) — Critical Velocity (meters/second)
\( D2 \) — Longer distance (meters)
\( D1 \) — Shorter distance (meters)
\( T2 \) — Time for longer distance (seconds)
\( T1 \) — Time for shorter distance (seconds)

Explanation: The formula calculates the slope of the distance-time relationship for two maximal running efforts.

3. Importance of Critical Velocity

Details: CV is a valuable metric for:

Setting appropriate training intensities
Monitoring changes in endurance capacity
Predicting performance at various distances
Establishing individualized training zones

4. Using the Calculator

Tips: Enter two race results or time trial performances of different distances (e.g., 1500m and 5000m). Both efforts should be maximal and recent (within 2-4 weeks of each other).

5. Frequently Asked Questions (FAQ)

Q1: What distances should I use to calculate CV?
A: Ideally use two races between 1500m-10000m for recreational runners, or 800m-5000m for competitive runners.

Q2: How accurate is CV for performance prediction?
A: CV predicts performance well for distances between the two test efforts, but becomes less accurate for much shorter or longer distances.

Q3: How often should I recalculate my CV?
A: Every 4-8 weeks, as your fitness changes. More frequently during intensive training periods.

Q4: What's a good critical velocity value?
A: Values vary by fitness level. Elite male runners might have CV > 6.0 m/s, while recreational runners typically range 3.5-5.0 m/s.

Q5: How does CV relate to lactate threshold?
A: CV typically occurs at a speed slightly faster than lactate threshold pace.