Description
Ideal supplied step-lifting work with an explicit conversion efficiency.
Movement research distinguishes elapsed time, active time, cycle phase, measured force, and assessment-score conventions. Normalizing or remapping these quantities can help compare records when their units and definitions agree. A local arithmetic term does not by itself validate a functional assessment or an exercise program.
Ideal supplied step-lifting work with an explicit conversion efficiency.
When to use this tool
Use Physiotherapy Step Height Work Term when you need this motion, timing, force, annotation, or score-mapping component for supplied research records.
How to use the tool and how it works
- Enter massKg, heightMeters, steps, gravity, efficiency. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read mechanicalJ, modeledInputJ. Use the output convention below.
For nonnegative massKg and heightMeters, nonnegative integer steps, positive gravity, and efficiency in (0,1], return mechanicalJ=massKg*gravity*heightMeters*steps and modeledInputJ=mechanicalJ/efficiency.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| massKg | Mass Kg | Required. Finite number; minimum 0. |
| heightMeters | Height Meters | Required. Finite number; minimum 0. |
| steps | Steps | Required. Safe integer; minimum 0. |
| gravity | Positive gravitational acceleration in the compatible length per time squared unit. | Required. Finite number; strictly above 0. |
| efficiency | Efficiency | Required. Finite number; maximum 1; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| mechanicalJ | Mechanical J | Required. Finite number. |
| modeledInputJ | Modeled Input J | Required. Finite number. |
{
"input": {
"massKg": 70,
"heightMeters": 0.2,
"steps": 10,
"gravity": 9.8,
"efficiency": 0.25
},
"output": {
"mechanicalJ": 1372.0000000000002,
"modeledInputJ": 5488.000000000001
}
}Limitations and assumptions
- Gravity must use m/s^2 and efficiency is dimensionless. The efficiency is supplied; modeled input energy is not a measured metabolic expenditure or an individualized rehabilitation recommendation.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Use the intended assessment or motion-analysis protocol with verified timing, units, and event annotations. A complete interpretation needs the relevant measurement properties and task context beyond this local calculation.
References
Similar or alternative tools
- Rehab Step Work Reference Height
Ideal supplied gravitational work and reference-height equivalents without a rehabilitation exercise prescription.
- Force Impulse Unit Factor
For positive forceUnitFactor and timeUnitFactor return convertedImpulse=impulse*forceUnitFactor*timeUnitFactor.