oonjung Jang
UX DESIGN · AI · AR/VR · PRODUCT DESIGN
Active-Aging XR Platform
My Role
ResearchUX/UI Design3D Graphics
Film Design
Timeline
9 months
2025. Mar - 2025. Nov
Skills
User Research
Product Design
Prototyping
Outcome
Reddot Design Concept 2026
Dezeen
OVERVIEW
bollo is an XR-based well-aging platform that interprets users’ physical changes through golf swing data, offering personalized insights that empower individuals to actively understand and manage their own evolution.
Created in collaboration with developers, I led 3D design and XR environment design, designed interactions, and conducted user research and interviews.
PROBLEM
People can feel their bodies changing—but struggle to understand what those changes mean for how they move
As people enter their 50s and 60s, changes in flexibility, strength, and balance begin to affect how they exercise.
Yet these gradual changes are difficult to recognize and respond to during everyday movement.
- Changing Bodies
Physical changes become increasingly noticeable in the 50s and 60s.
- Changing Exercise
People begin adjusting how they move to stay active and avoid injury.
- Limited Body Awareness
Those changes are difficult to interpret through everyday exercise alone.
So we asked...
How are people actually adapting to these changes today?
SOLUTION
Bollo is an XR active-aging platform that turns golf movement into personalized body insights
Practice
Collect your data
Review
Understand your data
Apply
Put your data into action
Connect
Learn from people like you
RESEARCH
A gap between perceived ability and limitations left participants unsure how to adapt their posture
This uncertainty increased their need for personalized guidance to understand their movement, identify posture issues, and find adjustments suited to their current physical abilities.
Changing bodies prompted a search for personalized information
Uncertain posture
47.3%
Lack of fun alone
36.5%
Unclear workout methods
28.4%
Easily give up
27%
88 people survey
Q. What difficulties do you experience when you exercise alone?
Exercise habits adapted to current physical abilities
“My flexibility has decreased, and I experience pain from muscle loss—especially in my knees, ankles, wrists, and shoulder joints.”
“My body doesn’t move the way it used to, so I find myself checking my posture more often. I want to understand these unfamiliar changes and know what’s actually going on with my body.”
Interviews with 11 participants
Physical decline can challenge control and identity
5 Whys
Why can declining physical abilities undermine confidence?
Q1. Why can physical changes lower confidence?
A1. They can weaken people’s sense of control over their bodies.
Q5. Why can this challenge their sense of identity?
A5. Physical abilities may have long shaped how people saw themselves. Our team interpreted the disconnect from their past selves as a feeling of
“I am gradually disappearing.”
Service goal
Help people understand their changing bodies through exercise data and adapt how they move with confidence.
SYSTEM FLOW
Expanding Data Beyond Exercise
Physical and swing data from continuous exercise help users understand themselves in daily life, enabling scalable third-party applications
Core Experience
- Practice
Practice golf in XR with real-time body tracking and personalized feedback to better understand your body and improve how you move
Mission Card: Personalized Golf Training
The system uses physical and age-related data to recommend missions tailored to your abilities. Visual guidance highlights what to adjust and the expected benefits, helping you train at your own pace.
Real-Time Body Tracking & Feedback
See your movements reflected in XR as cameras track your joints. Marimo, your AI coach, guides posture adjustments with personalized feedback while the system records your movement data throughout each session
Try tucking your lower back in just a little more,and keep your core nice and strong!
Swing Analysis & Progress
Revisit past swings and compare your posture across sessions to understand how your movements have changed and where you’ve improved
- Analyze
Understand your body’s changing flexibility, balance, and range of motion through swing analysis.
Analyzing your swing...
Frequent signs of shoulder flexibility decline detected in recent swing patterns.
Swing Pattern Analysis
Shoulder rotation range decreased by 17° compared to the first session.
Body Condition Analysis
Shoulder flexibility decline observed.Average muscle volume decreased by 12%.
Signs of decreased shoulder flexibility detected.Rotation range reduced and upper muscle tension observed.
Lower body balance stability slightly declined.Reduced muscle responsiveness and slower weight transfer detected.
Distribute pressure
applied to the lower back.
Reduce the risk of lumbar muscle strain and fatigue.
- Utilize
Put your body data to use beyond training, with personalized product recommendations and health records you can share with healthcare professionals.
Personalized Product Recommendations
Explore products matched to your physical needs based on your swing analysis. Clear explanations show why each product is recommended and how it could support your movement.
Connected Healthcare & Health Records
Turn your movement data into health records you can share with healthcare professionals, supporting online consultations and in-person appointments.
Build your own
Personalized guidance that evolves with your body
Your Evolving Health Profile
Bring your training records and body reports together to track changes over time. As your data grows, recommendations adapt to your changing physical needs
LESSON I LEARNED
Learning what makes an XR coach worth returning to
Value extends beyond the session
I learned to consider what makes an experience worth returning to. For Bollo, this meant extending the value of exercise data into everyday decisions, from choosing suitable products to communicating with healthcare professionals. This shifted my focus from designing a training session to supporting an ongoing relationship with one’s body.
An AI coach needs more than a personality
Designing Marimo taught me to connect character design with interaction logic: when the coach appears, how it speaks, and what data informs its guidance. Considering available tracking technologies alongside these decisions helped me think more concretely about how the coaching experience could work.
Concept feedback is only a starting point
The exhibition helped me understand how people perceived Bollo, but videos and prototypes offered limited insight into actual use. I learned to distinguish feedback on the concept from evidence about usability. My next step would be to test whether users can understand and act on the feedback while swinging.