What is the hamstring to quadriceps ratio?

The H:Q ratio compares hamstring strength to quadriceps strength in the same leg. The conventional ratio (both concentric) should be at or above 0.6. The functional ratio (hamstring eccentric vs quad concentric) should be at or above 1.0.

What H:Q ratio indicates injury risk?

A conventional H:Q ratio below 0.6 is associated with increased hamstring strain risk. Asymmetry between legs greater than 15% also predicts injury regardless of absolute ratio.

How is eccentric strength measured?

Eccentric strength is typically measured on an isokinetic dynamometer. The Nordic hamstring curl test provides a field measure of eccentric hamstring strength capacity.

Eccentric to Concentric Strength Ratio and Injury Risk

Calculate eccentric to concentric strength ratio for injury risk assessment. Hamstring to quad ratio below 0.6 indicates elevated hamstring injury risk.

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Distance covered in 12 minutes (meters)

🏅 Sports Note: These calculators provide estimates based on population data and validated formulas. Individual results vary by physiology, training level, and testing conditions. Consult a qualified coach or sports scientist for personalized guidance.

How to Use

Enter the values for the scenario you are assessing. Calculate eccentric to concentric strength ratio for injury risk assessment. Hamstring to quad ratio below 0.6 indicates elevated hamstring injury risk. Use the eccentric ratio result to inform your calculation.

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Eccentric to Concentric Strength Ratio and Injury Risk

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Frequently Asked Questions

What is the hamstring to quadriceps ratio?

What H:Q ratio indicates injury risk?

How is eccentric strength measured?