Description
Return trapezoidal force impulse and body-weight-adjusted vertical impulse.
Motion records combine sampled coordinates, periodic angles, event timing and signed work or impulse conventions. Local numerical differences and panels can be computed independently while actual event detection, full trajectories and physiological significance require complete measurements and analysis.
Return trapezoidal force impulse and body-weight-adjusted vertical impulse.
When to use this tool
Use Ground Reaction Impulse One Panel when checking the stated movement timing, angle, geometry, energy or panel convention.
How to use the tool and how it works
- Enter firstForce, secondForce, seconds, bodyMass, gravity. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read grossImpulse, netVerticalImpulse. Use the output convention below.
Return trapezoidal force impulse and body-weight-adjusted vertical impulse. Require seconds/bodyMass >= 0 and gravity > 0; gross = (firstForce+secondForce)*seconds/2, net subtracts mass*g*seconds.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstForce | First Force | Required. Finite number. |
| secondForce | Second Force | Required. Finite number. |
| seconds | Seconds | Required. Finite number; minimum 0. |
| bodyMass | Body Mass | Required. Finite number; minimum 0. |
| gravity | Gravity | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| grossImpulse | Gross Impulse | Required. Finite number. |
| netVerticalImpulse | Net Vertical Impulse | Required. Finite number. |
{
"input": {
"firstForce": 800,
"secondForce": 1000,
"seconds": 0.1,
"bodyMass": 80,
"gravity": 10
},
"output": {
"grossImpulse": 90,
"netVerticalImpulse": 10
}
}Limitations and assumptions
- This assumes the supplied force panel and vertical sign convention; full impulses, takeoff speed and clinical outcomes are not inferred.
- 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
Inspect calibrated motion/force data and use an appropriate complete trajectory or dynamics analysis; interpret health and safe-loading implications with qualified professionals.
References
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