Knee Wall Dorsiflexion Screen

Screen knee-to-wall ankle dorsiflexion against a supplied minimum distance.

Description

Knee-to-wall screening compares a supplied dorsiflexion reach distance with a minimum.

Knee-to-wall screening compares a supplied dorsiflexion reach distance with a minimum. Shortfall is zero when the target is met.^[1]

Screen knee-to-wall ankle dorsiflexion against a supplied minimum distance.

When to use Knee Wall Dorsiflexion Screen

Use this tool to screen knee-to-wall ankle dorsiflexion against a supplied minimum distance.

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

How to use Knee Wall Dorsiflexion Screen 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 kneeToWallDistanceCm, minimumDistanceCm using the field table and calculation rules, then run the tool.
Read distanceShortfallCm, meetsTarget. 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
kneeToWallDistanceCm	Knee to wall distance cm	number	Required
minimumDistanceCm	Minimum distance cm	number	Required

Enter nonnegative distances cm. Return shortfall and inclusive ≥minimum gate.

shortfall=max(0,minimum−distance)

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

Output field	Meaning	Value type
distanceShortfallCm	Distance shortfall cm	number
meetsTarget	Meets target	boolean

json

{
  "input": {
    "kneeToWallDistanceCm": 8,
    "minimumDistanceCm": 10
  },
  "output": {
    "distanceShortfallCm": 2,
    "meetsTarget": false
  }
}

Limitations and assumptions

No test technique, ankle-angle conversion or clinical reference value 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 Thomas Hip Flexion Screen: Screen Thomas-test thigh rise while checking sufficient knee flexion. For a complementary task, use Deep Squat Flexion Screen: Compare observed deep-squat knee flexion to a caller-defined benchmark.

References

Knee Wall Dorsiflexion Screen — tool.io

Similar or alternative tools

Thomas Hip Flexion Screen
Screen Thomas-test thigh rise while checking sufficient knee flexion.
Deep Squat Flexion Screen
Compare observed deep-squat knee flexion to a caller-defined benchmark.