Mixed Reality Rehabilitation Exercises With Automated Movement Tracking
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Solution Overview
Problem
Conventional physical rehabilitation exercises require constant monitoring by a rehabilitator, leading to inefficiencies such as rehabilitator fatigue, incomplete recording of patient performance, and long waiting lists for patients.
Innovation Solution
The implementation of a mixed reality (MR) environment allows rehabilitators to create interactive rehabilitation exercises using virtual objects with configurable attributes, enabling patients to perform exercises with high precision without continuous one-to-one monitoring. This system includes remote monitoring and adjustment capabilities for rehabilitators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a rehabilitator continuously monitors and accompanies the patient during practice sessions, then the exercise performance can be corrected and guided precisely, but the rehabilitator suffers fatigue and loses concentration after a while
Solution Approach 1:
The system enables self-monitored rehabilitation exercises through virtual objects that automatically track and record patient movements. The computer system autonomously monitors exercise performance, counts repetitions, and provides feedback without requiring continuous human oversight, allowing patients to perform exercises independently while maintaining precision.
Solution Approach 2:
The patent replaces the mechanical human monitoring system with an automated computer-based system using cameras, sensors, and software algorithms to detect and analyze patient movements. This substitution eliminates rehabilitator fatigue while maintaining monitoring precision through objective digital tracking of exercise performance.
2Ease of operation
If a rehabilitator accompanies the patient in the entire practicing session, then the exercise can be guided correctly, but the exercise performance is not completely and precisely recorded
Solution Approach 1:
The system provides automated feedback through virtual objects that respond to patient movements in real-time. The computer system continuously captures movement data, compares it against target ranges, and provides immediate feedback on performance quality. This ensures both proper guidance and complete recording of all exercise details including repetition counts, movement ranges, and deviation from desired performance.
Solution Approach 2:
The system creates a digital copy of the patient's exercise performance through automated tracking and recording. Virtual objects serve as digital proxies that capture and store precise movement data, eliminating the need for manual recording by the rehabilitator while ensuring complete and accurate documentation of all exercise parameters.
3Reliability
If rehabilitators are present to monitor every patient, then exercise correctness can be ensured, but there are often more patients than rehabilitators leading to long waiting lists
Solution Approach 1:
The automated monitoring system serves multiple patients simultaneously, replacing the need for dedicated rehabilitator attention for each individual. One rehabilitator can oversee multiple patients through the computer system, which universally applies the same monitoring and feedback mechanisms to all patients, thereby increasing treatment throughput while maintaining exercise correctness.
Solution Approach 2:
Patients perform exercises with automated self-monitoring through virtual objects that guide and track their movements independently. This self-service capability allows patients to proceed without constant rehabilitator supervision, enabling higher patient throughput while the system ensures exercise correctness through automated validation of movement ranges and repetition counts.
4Power
If simple exercises are performed repeatedly, then muscle and joint capabilities are stimulated, but the exercises become boring and painful reducing patient concentration
Solution Approach 1:
The system dynamically adjusts exercise parameters and provides varied feedback through interactive virtual objects. Virtual objects can change position, appearance, and response characteristics based on patient performance, making repeated exercises more engaging. The system can modify exercise difficulty, provide visual feedback on improvement, and adjust pacing to maintain patient motivation while continuing to deliver effective rehabilitation stimulation.
Data Source
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AI summary
A mixed-reality (MR) system allows a rehabilitator to define a variety of physical exercises by virtually placing virtual objects in a space with suitable attributes to control different parameters of the exercises according to the patient's treatment process. The patient may then perform the authored exercises in MR by interacting with the virtual objects using the suitable body parts following the rehabilitator's instruction. The rehabilitator does not need to accompany the patient during the entire practicing time. The exercise practiced by the patient may be recorded and transferred to the rehabilitator's computing device (e.g. PC or tablet) for remote monitoring. The rehabilitator thus can work with more patients at a time than in the conventional in-person 1-1 setting. The system can also precisely record the patient's exercise performance and the rehabilitator can review such data either in MR or on his/her device later on to follow, analyse and adjust the treatment process if needed.