I am creating a fitness app for the iPhone. The target audience is NORMAL people who try to work out a couple times a week. The target is not hardcore gym buffs; I'm aiming for people who go to the gym from time to time to stay healthy and feel good. They sometimes make fitness goals, but don't always have the time to achieve them.
I would like an EKG graph.
I want a graph with X and Y axes and a grid. It would ideally be white or gray on black. Ideally, I would like the background of the grid to specify the different heartrate zones (cardio zone, anaerobic zone, fat burning, warmup) in different colors.
One version of the icon should have just this graph.
Another version should have a green EKG line on top of a faded view of the graph, indicating a heartbeat/pulse. I would also like a large red heart button next to the EKG line.
See the attached images as a reference.