Work

About

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.


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.

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©️ 2025 by Leah Kim