PRC Technology & Digital Tools 2 — Questions and Answers
Question 1: Which digital tool is most commonly used in PRI-based practice to objectively measure thoracic rotation range of motion during a supine assessment?
- Digital inclinometer or smartphone goniometry app (Correct answer)
- Force plate ground reaction analysis
- Surface EMG electrode placement
- Infrared motion capture suit
Correct answer: Digital inclinometer or smartphone goniometry app
Digital inclinometers and validated smartphone goniometry apps provide objective ROM measurements for thoracic rotation in supine PRI assessments.
Question 2: A PRC practitioner uses pressure biofeedback during the 90-90 hip lift. What target pressure reading indicates optimal abdominal wall engagement without Valsalva?
- Pressure drops 5–10 mmHg from baseline (Correct answer)
- Pressure rises 10 mmHg above baseline
- Pressure remains unchanged at 40 mmHg
- Pressure rises 30 mmHg above baseline
Correct answer: Pressure drops 5–10 mmHg from baseline
A 5–10 mmHg decrease from the baseline reading during the 90-90 hip lift indicates proper ZOA establishment without breath-holding.
Question 3: In video gait analysis software used by PRI practitioners, which sagittal-plane landmark alignment is prioritized to identify Left AIC patterning?
- Left anterior superior iliac spine relative to left greater trochanter (Correct answer)
- Right medial malleolus relative to right tibial tuberosity
- Left acromion relative to C7 spinous process
- Right calcaneus relative to right navicular
Correct answer: Left anterior superior iliac spine relative to left greater trochanter
The LASIS-to-greater-trochanter relationship in the sagittal plane reveals anterior pelvic tilt consistent with Left AIC pattern on video analysis.
Question 4: Which wearable sensor modality is most appropriate for continuous monitoring of diaphragm excursion patterns in a PRI-based respiratory rehabilitation program?
- Respiratory inductance plethysmography bands (Correct answer)
- Pulse oximetry finger clip
- Skin conductance wristband
- Accelerometer-only chest patch
Correct answer: Respiratory inductance plethysmography bands
Respiratory inductance plethysmography (RIP) bands measure chest and abdominal wall movement, making them ideal for tracking diaphragm excursion patterns.
Question 5: A PRC clinician is reviewing a patient's 3D motion capture data. Which finding during the gait loading response best supports a right BC pattern?
- Right thorax internal rotation coupled with right pelvis external rotation (Correct answer)
- Bilateral symmetric hip flexion moments at heel strike
- Left thorax lateral flexion with left pelvis forward rotation
- Symmetric trunk center of mass oscillation
Correct answer: Right thorax internal rotation coupled with right pelvis external rotation
Right BC pattern presents with the right thorax internally rotating while the right pelvis externally rotates, creating a characteristic compression finding captured by 3D gait analysis.
Question 6: When using telehealth video for remote PRI exercise instruction, which setup modification best preserves the clinician's ability to assess sagittal-plane rib cage position?
- Position camera at hip height with patient standing perpendicular to lens (Correct answer)
- Use overhead camera angle looking down at patient's crown
- Place camera at ceiling height looking down diagonally
- Position camera 10 feet away at eye level with patient facing forward
Correct answer: Position camera at hip height with patient standing perpendicular to lens
A hip-height camera with the patient in a true lateral orientation allows the clinician to assess anterior rib flare and thoracic kyphosis in the sagittal plane via telehealth.
Question 7: Which electronic health record (EHR) feature is most critical for a PRI-based practice to accurately track pattern resolution across multiple visits?
- Structured fields for left/right AIC, BC, and PEC pattern designations with visit-level timestamps (Correct answer)
- Automated ICD-10 coding based on chief complaint text
- Integration with pharmacy dispensing software
- Insurance pre-authorization workflow automation
Correct answer: Structured fields for left/right AIC, BC, and PEC pattern designations with visit-level timestamps
Structured, timestamped PRI pattern designation fields allow clinicians to objectively track whether AIC, BC, or PEC patterns are resolving across treatment visits.
PRC Technology & Digital Tools 2
Which digital tool is most commonly used in PRI-based practice to objectively measure thoracic rotation range of motion during a supine assessment?