I like where your headed with this idea. It has potential to be in the top 3. Please uselong lean lettering, lose the extra’s other than the cardio graph. You did a good job on that. I like how its thin, not too dark. Its subtle. I would like you to use the cardio graph and minimize the amount of “heart beats.” It would be nice to see a line about 2/3rd through then have 1 heart beat then finish out the line for the last 1/6th of the logo. If you can, please try it in both gray/black and green.