Muscle Fiber Type Estimator
Estimate dominant muscle fiber type from performance characteristics and training response with programming guidance.
Inputs
Fill in the inputs and press Calculate to see your science-backed results.
How to use Muscle Fiber Type Estimator
Estimate dominant muscle fiber type from performance characteristics and training response with programming guidance.
Choose measurements that describe your actual session or situation, confirm the units, then calculate. Read the result alongside its assumptions and use the tool again when your inputs change.
Inputs explained
Best 5-rep lift (kg)
Enter a measured or estimated value (minimum 20) (maximum 300), using the unit indicated in the field label.
Bodyweight (kg)
Enter a measured or estimated value (minimum 40) (maximum 150), using the unit indicated in the field label.
Best 5K time (min)
Enter a measured or estimated value (minimum 12) (maximum 60), using the unit indicated in the field label.
Vertical jump (cm)
Enter a measured or estimated value (minimum 20) (maximum 100), using the unit indicated in the field label.
Response to high volume
Choose the option that matches your context; available options include Great, Moderate, Poor.
Response to high intensity
Choose the option that matches your context; available options include Great, Moderate, Poor.
How to interpret the output
Follow the tool-specific testing protocol and review any unusual outcomes with a qualified professional.
Repeat measurements using similar conditions when monitoring trends. Numerical predictions can vary with input accuracy, measurement method and individual circumstances.
Limitations and responsible use
True fiber typing requires biopsy. These estimates infer tendencies from performance — treat as a training preference guide.
Read the full disclaimerFrequently asked questions
What does the Muscle Fiber Type Estimator estimate?
Estimate dominant muscle fiber type from performance characteristics and training response with programming guidance.
Which information do I need for this specialized tool?
Provide Best 5-rep lift (kg), Bodyweight (kg), Best 5K time (min), Vertical jump (cm), Response to high volume, and any additional fields shown above. Use your own relevant measurements and the units indicated in each field.
How should I interpret the result?
Follow the tool-specific testing protocol and review any unusual outcomes with a qualified professional. Compare results with your goals and other relevant observations rather than using a single output to make a major decision.
Disclaimer: True fiber typing requires biopsy. These estimates infer tendencies from performance — treat as a training preference guide. Read the medical disclaimer.
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