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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: IEEE Pulse. 2013 Nov-Dec;4(6):34–40. doi: 10.1109/MPUL.2013.2279620

FIGURE 3.

FIGURE 3

The smartphone display for the ENGAGED weight loss app [9]. Fans coded in traffic light colors show how much you have already eaten today relative to your daily allowances for calories and fat. The green fan signifies that you can still eat 327 more calories today. However, if you enter the steak that you are thinking about ordering, the fan will turn bright red. You can top up the green physical activity thermometer by accumulating more minutes of moderate intensity exercise until you reach your weekly goal. Wearing the study accelerometer lets your minutes of activity accumulate automatically, but if you forget to wear it, you can get credit (in lighter green) by entering your exercise manually.