Description
Return Froude and normalized walking-speed quantities.
Biomechanical normalization depends on a body, material or reference-length basis. A dimensionless force, strain or allocation fraction can be consistent with supplied numbers without establishing actual anatomy, healthy motion, appropriate training or safe tissue loading.
Return Froude and normalized walking-speed quantities.
When to use this tool
Use Walking Froude Speed Leg Length Factor when checking the stated biomechanical scale, strain or mass-basis convention.
How to use the tool and how it works
- Enter speed, legLength, gravity. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read froude, normalizedSpeed. Use the output convention below.
Return Froude and normalized walking-speed quantities. Require speed >= 0 and legLength/gravity > 0; froude = speed²/(gravity*legLength), normalizedSpeed = speed/sqrt(gravity*legLength).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| speed | Speed | Required. Finite number; minimum 0. |
| legLength | Leg Length | Required. Finite number; strictly above 0. |
| gravity | Gravity | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| froude | Dimensionless speed²/(gravity*legLength), equal to normalizedSpeed squared. | Required. Finite number. |
| normalizedSpeed | Normalized Speed | Required. Finite number. |
{
"input": {
"speed": 2,
"legLength": 1,
"gravity": 4
},
"output": {
"froude": 1,
"normalizedSpeed": 1
}
}Limitations and assumptions
- Use compatible length/time units; the result does not estimate gait quality, a safe walking speed or a clinical condition.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use calibrated measurements and an appropriate complete biomechanical model; consult qualified health or movement professionals for care, rehabilitation or safe activity decisions.
References
Similar or alternative tools
- Normalized Force Body Weight Reference
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