Gait Duty Factor
Calculate stance duty factor and compare against a supplied walking cutoff.
Description
Gait duty factor is stance duration divided by total cycle duration.
Gait duty factor is stance duration divided by total cycle duration. A caller cutoff gives the walking-related flag its interpretation.1
Calculate stance duty factor and compare against a supplied walking cutoff.
When to use Gait Duty Factor
Use this tool to calculate stance duty factor and compare against a supplied walking cutoff.
Prepare the measured movement, timing, load or preassigned score requested. Keep protocols, units, paired measurements and caller-selected thresholds consistent.
How to use Gait Duty Factor and understand its results
- Prepare the measured movement, timing, load or preassigned score requested. Keep protocols, units, paired measurements and caller-selected thresholds consistent.
- Enter stanceSeconds, gaitCycleSeconds, walkingDutyCutoff using the field table and calculation rules, then run the tool.
- Read dutyFactor, stancePercent, aboveWalkingCutoff. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- 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 field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| stanceSeconds | Stance seconds | number | Required |
| gaitCycleSeconds | Gait cycle seconds | number | Required |
| walkingDutyCutoff | Walking duty cutoff | number | Required |
Enter nonnegative stance no greater than positive cycle duration and cutoff 0–1. Return factor, percentage and inclusive ≥cutoff flag.
duty=stance/cycle; stance%=100duty Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| dutyFactor | Duty factor | number |
| stancePercent | Stance percent | number |
| aboveWalkingCutoff | Above walking cutoff | boolean |
{
"input": {
"stanceSeconds": 0.6,
"gaitCycleSeconds": 1,
"walkingDutyCutoff": 0.5
},
"output": {
"dutyFactor": 0.6,
"stancePercent": 60,
"aboveWalkingCutoff": true
}
}Limitations and assumptions
No flight detection, gait diagnosis or universal walking cutoff is supplied.
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. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Double Support Gait Percent: Measure fraction of a gait cycle with both feet on the ground. For a complementary task, use Ground Contact Aerial Ratio: Compare running ground-contact and aerial times.
References
-
Gait Duty Factor — tool.io
Similar or alternative tools
- Double Support Gait Percent
Measure fraction of a gait cycle with both feet on the ground.
- Ground Contact Aerial Ratio
Compare running ground-contact and aerial times.