Lift-it — Safer Weightlifting through Motion Tracking

Revolutionizing the educational ecosystem with a mobile app designed to enhance interactive learning and peer collaboration.

Role

UX/UI Designer

Industry

Health

Duration

1 month

Project Overview

In 2023, I developed LIFT-IT, a barbell trajectory tracking service designed to help beginner and intermediate weightlifters lift safely without injury.
With the growing popularity of weightlifting among Gen Z, gym-related injuries were on the rise due to incorrect form and lack of beginner-friendly tools.
Existing lifting apps were often intimidating, raw-data heavy, and lacked Korean language support.

Challenge

Several issues surfaced clearly:

Injury rates among young bodybuilders were nearly three times higher than general recreational sports injuries.
Available apps were too complex, displaying raw data without user guidance.
Korean-speaking users lacked localized, intuitive solutions for lifting support.
Many apps suffered from usability issues like confusing UIs and frequent technical errors.

Project Overview

In 2023, I developed LIFT-IT, a barbell trajectory tracking service designed to help beginner and intermediate weightlifters lift safely without injury.
With the growing popularity of weightlifting among Gen Z, gym-related injuries were on the rise due to incorrect form and lack of beginner-friendly tools.
Existing lifting apps were often intimidating, raw-data heavy, and lacked Korean language support.

Challenge

Several issues surfaced clearly:

Injury rates among young bodybuilders were nearly three times higher than general recreational sports injuries.
Available apps were too complex, displaying raw data without user guidance.
Korean-speaking users lacked localized, intuitive solutions for lifting support.
Many apps suffered from usability issues like confusing UIs and frequent technical errors.

a cell phone on a white block

a cell phone on a white block

a cell phone on a white block

Process

I addressed these problems through a research-driven design approach:

Researched athletic injury rates and identified pain points in existing lifting apps.
Conducted competitive benchmarking across popular lifting tracker services, noting gaps in UI clarity and feature sets.
Designed low-fidelity wireframes focusing on approachability and real-time feedback.
Developed a comprehensive style guide to maintain consistent and user-friendly UI throughout the app.
Created a concept that allows users to track their lifts visually, receive trajectory feedback, and monitor progress over time.

Solution

The final prototype featured:

Real-time barbell tracking and trajectory visualization during lifts.
Simplified video recording and tagging system for lift history tracking.
Clear, minimal UI supporting Korean language users.
A motivational dashboard showcasing personal records, favorite exercises, and trajectory improvements.
Style guide that standardized elements like typography, buttons, navigation, and feedback indicators.

Results

Through this project:

Delivered a complete end-to-end prototype addressing usability gaps in lifting apps.
Made injury-prevention feedback accessible to Korean beginner weightlifters.
Created a scalable design foundation for future AI-based posture correction features.

My Role

Conducted UX research on athletic injury patterns and app usability.
Created low- and high-fidelity designs.
Established a detailed visual style guide for consistency.
Designed dashboard and feedback features to enhance user motivation.

Future Steps / Reflections

Plan to incorporate AI-driven posture feedback to provide real-time form corrections.
Intend to extend the motivational dashboard with deeper workout insights like personal best achievements.
Learned that offering real-time visual feedback and simple UX can make advanced sports tracking technology accessible to wider audiences.

Results

Through this project:

Delivered a complete end-to-end prototype addressing usability gaps in lifting apps.
Made injury-prevention feedback accessible to Korean beginner weightlifters.
Created a scalable design foundation for future AI-based posture correction features.

My Role

Conducted UX research on athletic injury patterns and app usability.
Created low- and high-fidelity designs.
Established a detailed visual style guide for consistency.
Designed dashboard and feedback features to enhance user motivation.

Future Steps / Reflections

Plan to incorporate AI-driven posture feedback to provide real-time form corrections.
Intend to extend the motivational dashboard with deeper workout insights like personal best achievements.
Learned that offering real-time visual feedback and simple UX can make advanced sports tracking technology accessible to wider audiences.

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Leah Kim

©️ 2025 by Leah Kim

Leah Kim

©️ 2025 by Leah Kim

Leah Kim

©️ 2025 by Leah Kim