Reeha
Your daily rehab companion
Reeha is a platform that makes home rehabilitation practices motivating and less mundane by integrating rehabilitations into gamified activities with interactive visual and audio feedback.
Evan Zhang, Yaezi Lee, Sue Hong
My Role: Product Design, Product Strategy, UX Research, Prototyping
Service Design
UX/UI Design
Prototyping
#motion-tracking
#rehabilitation
#gamification
Adobe Creative Suite
Generative AI
Vibe Coding
Project Overview
Problem Statement
Home rehabilitation is an important step for patients with upper-limb injury; but repetitive tasks, slow improvements, and limited provider guidance reduce their motivation and hinder recovery.
Solution
Reeha is a platform that makes home rehabilitation practices motivating and less mundane by integrating rehabilitations into gamified activities with interactive visual and audio feedback.
Demo Video
Research
Stakeholder Map
Who is our primary and secondary target user?
Our team mapped stakeholders to define scope and target users, focusing on adults aged 25–60 recovering from upper-limb injuries at home or with past experience. The map also identified essential clinical perspectives from occupational therapists, physical therapists, and physicians to guide product decisions and ensure clinical relevance.
User / Expert Interview
Understanding patient pain points and needs
Through 8 user interviews and 4 expert interviews, we identified monotony, confusion, and disconnection from clinical guidance as key barriers to sustained home rehabilitation. Patients don’t just want to perform exercises correctly — they want to feel supported, understood, and able to see progress over time.
“A study showed that a year after discharge, only about 20% of physical therapy patients stuck with their home exercises. Patients are performing exercises incorrectly all the time.”
— Jared Todorowski (PT, DPT, TPS, PFCS)
Interview Key Insights
Data Analysis of User Pain Points
We found high correlation between user and expert interviews around three core challenges — Design & Tech Gaps, Psychological, and Emotional Barriers — that shape a patient’s emotional journey. Motivation depends on visible progress and timely feedback.
Design & Tech Gaps
Limited real-time feedback, personalization, poor continuity
Psychological Barriers
Pain, stiffness, uncertainty
Emotional Barriers
Repetitive, depression, anxiety
“It’s hard to describe how much force to apply… I was worried that my recovery didn’t have any progress.”
— Eric (Patient)
“I don’t have access to medical tools.”
— Terry (Patient)
How Might We
Provide clear guidance, meaningful feedback, and continuous support to help motivate patients’ confidence and engagement in home rehabilitation?
Design
Concept Development
Core Features
Addressed Opportunities
Our core features cover mini games, exercise reports, and provider prescriptions. We incorporated interaction design principles across three concepts — Interesting, Supportive, and Professional — within our service.
Key Insights
- Mini games
- Exercise reports
- Provider's prescription
System Overview
Screen Device Considerations around Accessibility & Business Perspective
The patient follows exercise guides on the screen while the TrueDepth camera tracks their movement. That movement data controls a mini-game giving instant feedback. After each game, progress is sent to the doctor, who chooses the next games.
Physical Section
Patient performs the guided exercise; TrueDepth camera captures motion in real time.
Digital Section
Motion drives a mini-game; results feed the report and inform the doctor’s next prescription.
Designing for Motivation
Through Structure and Feedback
Motivation Drivers
Mini Game Example: Muscular Cupcake
Users told us they’d rather return to everyday activities than perform isolated clinical exercises. We designed themed mini-games — baking, sports, gardening — that translate therapeutic movements into real-world goals.
“I wanted to go back to my everyday hobbies like baking.”
— Timothy (Patient)
We designed mini-game body movements based on professional rehabilitation exercises.
User Flow
Exercise That Doesn’t Feel Like Exercise
The user journey includes: checking daily goals, choosing a game, watching the tutorial, training with mini-games, and reviewing the report.
Key Insights
- Log in → Today's Goal → Main page
- Camera Setup → Tutorial
- Play → Exercise → Wrap up
- Report
Prototyping with Vibe Coding
How does the interactive game work?
This diagram shows how mini-games translate physical movements into game actions, using the cupcake-making game as an example. The direct link between movement and animation makes therapy feel more engaging and easier to understand than numbers or charts.
Key Insights
- Starting position
- Pull down to pipe
- Push up to move to the next cupcake
- Joint nodes checked against threshold range
UI Design & Iteration
Ongoing user testing informed each iteration, guiding decisions around readability, accessibility, and experiential clarity from low- to high-fidelity prototypes.
Momentum from the first tap
The home page focuses on momentum. It reduces friction at the start of each day and keeps users oriented, motivated, and engaged throughout their rehabilitation journey.
Focus-driven or play-driven, without friction
This step gives users control over how they engage with training, supporting both focus-driven and play-driven rehabilitation without adding friction.
Aligning body and interaction
The tutorial aligns movement and interaction, helping users understand how physical actions translate into progress within the experience.
Physical effort into visible feedback
The gameplay stage closes the loop between movement and outcome, turning physical effort into immediate, visible feedback.
Progress made visible
The exercise report makes progress visible, helping users reflect on consistency and improvement across each day.
Recovery, shared with your provider
The clinic page consolidates clinical context and progress, giving users a clear, shared view of their recovery with their provider.
Deliver
Validation & Outcome
Interactive Product Design Launch Exhibition
In the final phase of the project, we invited participants with different backgrounds to try the prototype. Feedback was consistently positive — many noted that the game-based approach made the experience feel more engaging and enjoyable.
Importance of Reeha
The Value of Reeha
Our contribution is a clinically grounded interaction framework that helps designers and researchers create home rehabilitation systems patients feel confident using and clinicians feel comfortable supporting over time.
- Offers Real-Time Guidance and Feedback — turning movement into visible progress
- Focused Support for Upper-Limb Recovery — grounded in professional rehab exercises
- Restores Everyday Independence — by re-linking therapy to real-world hobbies and routines
Acknowledgments
We thank all participants in our user and expert interviews, and our Carnegie Mellon University professors and cohorts who supported the process through feedback and critique.
Technical Advisor
Shemona Singh
Expert Interview
Anne Marie Sweeney OT
Jared Todorowski PT
Justin Berthold DO
Lindsay Lehman PT
Professors
Andrew Twigg
Stacie Rohrbach