AI for Physical Therapist Home Exercise Programs Quiz

Answers and explanations appear as you take the quiz.

1. What is pose estimation in camera-based exercise apps?
   • A way to estimate how long an exercise will take
   • A survey about a patient's posture habits
   • A computer vision method that finds body landmarks, such as knees and hips, in each video frame
   • A billing code for remote care
2. Why does the guide call AI-drafted exercise dosing only a starting point?
   • The model does not know the patient's tissue irritability, precautions, other conditions or response to load
   • AI cannot write sets and reps
   • HEP platforms reject AI-drafted programs
   • Patients cannot read AI-written text
3. Why is knee bend measured by a front-facing camera likely to be wrong?
   • Front views have poor lighting
   • A single camera sees a flat image, so movement toward or away from the lens distorts angles
   • The apps only track the upper body
   • Front views lose the hip points
4. According to the guide, what do US remote therapeutic monitoring (RTM) codes allow?
   • Payment for any fitness app subscription
   • Free goniometers for clinics
   • Automatic approval of home programs
   • Payment for monitoring certain non-physiologic data, such as adherence and response, under specific requirements
5. Why can rep counting miscount partial reps or pauses?
   • The camera runs out of memory
   • Counting usually depends on a joint angle crossing set thresholds
   • The app counts reps to the beat of music
   • Patients must press a button for each rep
6. Which misconception about app-reported joint angles does the guide describe?
   • That they equal goniometer measurements, when they are estimates with errors of several degrees
   • That they always read too high
   • That phones cannot report them
   • That PTs cannot see them
7. What does the technical section recommend before relying on an app's range-of-motion trends?
   • Use the app only in dim light
   • Have patients wear loose clothing
   • Switch to the front camera
   • Check the app against a goniometer on a few patients
8. Which risk of fully automated programs without PT oversight does the guide name?
   • They are too expensive
   • They cannot show exercise videos
   • They may miss red flags, such as worsening symptoms that need a medical referral
   • They only work for athletes