Cadence Stride Speed Solver

Solve one missing gait speed, step cadence, or step length from the other two.

Description

Gait speed equals step cadence times step length with a minute-to-second conversion.

Gait speed equals step cadence times step length with a minute-to-second conversion. Zero marks exactly one unknown field in this solver.1

Solve one missing gait speed, step cadence, or step length from the other two.

When to use Cadence Stride Speed Solver

Use this tool to solve one missing gait speed, step cadence, or step length from the other two.

Prepare the measured movement, timing, load or preassigned score requested. Keep protocols, units, paired measurements and caller-selected thresholds consistent.

How to use Cadence Stride Speed Solver and understand its results

  1. Prepare the measured movement, timing, load or preassigned score requested. Keep protocols, units, paired measurements and caller-selected thresholds consistent.
  2. Enter speedMps, cadenceStepsPerMinute, stepLengthM using the field table and calculation rules, then run the tool.
  3. Read solvedField, solvedValue. The explanation below defines the units, signs, ordering and any flags or placeholder values.
  4. If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
Input fieldMeaningValue type; see rules belowRequirement
speedMpsSpeed mpsnumberRequired
cadenceStepsPerMinuteCadence steps per minutenumberRequired
stepLengthMStep length mnumberRequired

Enter all three fields: two positive values and one zero sentinel. Return the missing field name and solved value on its corresponding unit basis.

speedMps=cadenceStepsPerMinute×stepLengthM/60

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output fieldMeaningValue type
solvedFieldSolved fieldstring
solvedValueSolved valuenumber
json
{
  "input": {
    "speedMps": 0,
    "cadenceStepsPerMinute": 120,
    "stepLengthM": 0.75
  },
  "output": {
    "solvedField": "speedMps",
    "solvedValue": 1.5
  }
}

Limitations and assumptions

Uses step length rather than two-step stride length. No measurement consistency test is possible with only two known values.

Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Step Stride Length Converter: Convert mean step length to bipedal stride length under equal steps. For a complementary task, use Cadence Change Prescription: Translate a planned cadence increase into target steps/min and step-length factor.

References

  1. Cadence Stride Speed Solver — tool.io

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