Rehabilitation: Range of Motion Assessment

Purpose

Use the range-of-motion tools at APOPT Form Analysis to document visible two-dimensional knee, hip, shoulder, or elbow motion across repeated sessions. The coach’s role is to collect consistent observations and communicate them appropriately—not diagnose, clear, or prescribe treatment.

How the tool is used

Select one joint movement and a standardized task supplied or approved by the appropriate professional when rehabilitation is involved. Use the same camera distance, height, orientation, clothing/landmark visibility, warm-up, and instructions each time. Record the side, active or passive movement, session context, discomfort reported by the athlete, and who requested the assessment.

The tool can support visible angle measurement, side-to-side description, session comparison, annotated frames, and report-ready results. A 2D angle is affected by camera alignment, rotation out of plane, landmark placement, soft tissue, and athlete guarding.

Deriving actionable insight

Appropriate coaching conclusions include:

• The measurement setup was or was not repeatable.

• Visible range was similar, larger, or smaller under comparable conditions.

• The athlete reported a change in comfort or control.

• The result should be repeated or shared with a qualified clinician.

Do not label tissue damage, prescribe rehabilitation, or use the result as return-to-play clearance.

75–105 minute assignment

0–15 minutes — Scope and authorization. Use a healthy demonstration or a professionally approved assessment. Obtain authorization and state the one measurement question.

15–30 minutes — Standardize. Mark camera position, task instructions, body position, warm-up, and visible landmarks.

30–50 minutes — Baseline. Record 2–3 trials and measure the same movement. Report the range across trials rather than selecting one favorable value.

50–70 minutes — Quality audit. Identify out-of-plane motion, landmark uncertainty, or inconsistent setup. Repeat if necessary.

70–105 minutes — Report. Write a descriptive result, athlete-reported response, limitation, and appropriate next step or referral point.

Questions to answer

1. Was the setup repeatable enough for comparison?

2. How much trial-to-trial variation occurred?

3. Which factors could change the visible angle?

4. What language keeps the result descriptive?

5. Who should receive the information if it affects rehabilitation or clearance?

Generative AI knowledge check

Prompt 1: “Rewrite this de-identified range-of-motion note so it is descriptive, avoids diagnosis and clearance claims, reports variability, and states the camera limitations.”

Prompt 2: “Quiz me on the difference among measurement repeatability, meaningful change, pain reporting, injury diagnosis, rehabilitation prescription, and return-to-play clearance.”

Prompt 3: “Act as a clinical-scope reviewer. Flag every sentence in my report that exceeds a coach’s role and suggest safer wording or referral.”

Deliverable

Submit the standardized protocol, trial measurements, quality audit, descriptive report, and referral/escalation rule.