Handstand Shoulder Angle Screen

Compare the measured value with caller-supplied bounds for handstand shoulder angle screen.

Description

Handstand shoulder-angle screening compares a measured angle with a supplied alignment window.

Handstand shoulder-angle screening compares a measured angle with a supplied alignment window. Both signed edge margins are returned.^[1]

Compare the measured value with caller-supplied bounds for handstand shoulder angle screen.

When to use Handstand Shoulder Angle Screen

Use this tool to compare the measured value with caller-supplied bounds for handstand shoulder angle screen.

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

How to use Handstand Shoulder Angle 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 shoulderAngleDegrees, minimumAngleDegrees, maximumAngleDegrees using the field table and calculation rules, then run the tool.
Read marginToMaximum, marginToMinimum, withinRange. 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
shoulderAngleDegrees	Shoulder angle (°)	number	Required
minimumAngleDegrees	Minimum angle (°)	number	Required
maximumAngleDegrees	Maximum angle (°)	number	Required

Enter finite angles and ordered bounds. Return inclusive gate and both margins; signed angles are accepted.

minMargin=angle−minimum; maxMargin=maximum−angle

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

Output field	Meaning	Value type
marginToMaximum	Margin to maximum (°)	number
marginToMinimum	Margin to minimum (°)	number
withinRange	Within range	boolean

json

{
  "input": {
    "shoulderAngleDegrees": 178,
    "minimumAngleDegrees": 175,
    "maximumAngleDegrees": 185
  },
  "output": {
    "marginToMaximum": 7,
    "marginToMinimum": 3,
    "withinRange": true
  }
}

Limitations and assumptions

No anatomical convention, balance dynamics, pain or safe handstand assessment is provided.

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 Shoulder Rotation Arc: Sum shoulder internal/external rotation arc and compare with a caller target. For a complementary task, use Snatch Catch Stability Screen: Compare snatch catch depth and sway with caller-defined stability limits.

References

Handstand Shoulder Angle Screen — tool.io

Similar or alternative tools

Shoulder Rotation Arc
Sum shoulder internal/external rotation arc and compare with a caller target.
Snatch Catch Stability Screen
Compare snatch catch depth and sway with caller-defined stability limits.