Zane Liu
Imagine life

Creating Pec-Man

Can gamification mobilize people to be their healthiest selves?

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fitness.jpg

FITNESS AND HEALTH

30 minutes a day is the magical number for long term health. It allows the body to maintain healthy muscles, a fit cardiovascular system, and a lively metabolism. Yet only 21% of adults maintain such a routine. 

Fitness is derived from a foundation built from habit, experience, and self-discipline. PEC-MAN is built on the concept of creating healthy, fun habits. A few minutes of higher intensity exercise can be exceptionally healthy for mind and body. That's why PEC-MAN is designed for all ages.

Pecman-sketches

WEARABLE AND COMFORTABLE

Plyometric workouts range from push ups to squats to crunches. While these exercises were all investigated, we discovered many of the motions involved were far too dynamic to capture as game inputs.

Push ups offer a clear vertical movement that can be measured using tri-axis accelerometers. The convenience of the arm offers a localized placement that doesn't garner interference or noise from other lateral motions. No additional sensors were even necessary.

 
Data-analysis

DATA ANALYSIS AND ALGORITHM

To make PEC-MAN accurate and easy to use, we collected hours of user push up profile data using our accelerometer embedded prototype band.

We placed the band in numerous body positions. Chest bands proved uncomfortable for female users, and data often varied between users due to unique push up forms. A root mean squared average was later used to help filter out and reduce noise.

 

CAD-model

BUILDING PEC-MAN

The first generation PEC-MAN is built from a 3D printed body, a laser engraved lens, and is wired to an Arduino Uno. This model was designed to be light yet strong enough to protect the housed sensors. 

A stretchable mesh band was added to offer adjustable, sweat-resistant comfort. Future generations would incorporate a SoC and bluetooth for added mobility and an even smaller footprint.