A lot of people have reached a point in their lives where they want to change something about their body. They want to lose weight, gain muscles and live healthier. At the same time a lot of people reach a point where they fail, give up or do not start at all without any strategies to conquer there weaker selves. But asked by other people with similar struggles we change into veritable life coaches. It seems to be easier to give advice while viewing problems from above than taking action oneself.
In terms of psychology this phenomenon is called “projection” – following ones own goals through others. Hence the user is supposed to project his own goals on the avatar WUTZ thus coaching him playfully. The avatar evolves by completing different minigames. These games are controlled through a wearable device attached to conventional fitness equipment.
A crucial part of the over all design is the minimalistic cartoonish character design of the avatar. The somewhat flashy style and coloring are supposed to facilitate the joy of use in a visually humorous way.
Right from the start it was important to make the character as modular as possible since the character needed to be displayed with different body proportions and express different emotions. The avatar is characterized by its reduction in terms of design and flashy colors. The mimics are also very minimalistic and consist of basic lines and shapes.
Different body proportions of the avatar. 
Different facial expressions of the avatar.The interface of the app is kept minimalistic in order to foreground the apps functionality. After launching the app the user enters the start screen displaying the avatar. This screen serves as the selection menu for each muscle group. If the avatar wants to train a certain body part the affected muscle group is highlighted through a hotspot which represents a corresponding game. After tapping a hotspot a tutorial is shown explaining the following game. At the end of the tutorial a start button appears with which the bluetooth connection is established an the game commences.
After completing the game successfully the user is directed right back to the start screen. The muscle group of the avatar has grown respectively. The hotspots appear periodically in order to motivate the user to train regularly in form of small sets.
For connecting the wearable with the app a technologicall basis is needed. At first all the necessary components were identified. Because of the small constructive form we decided to use an Arduino Mini, a 9-axis-gyrosensor for measuring the acceleration, a bluetooth shield for the connection with the app and a status led. A rechargeable battery servers as power supply. The case was created in Autodesk Inventor adjusted to the aforementioned components and printed in 3d. Afterwards the case was coated with primer several times and spray painted.
Initial rendering of the wearable and the kettle bell. 
Building the prototype.
The wearable. 
The wearable in action.
In-game footage of the app.
Dokumentation of the project.
Excerpt of the documentation.
