I don't get your business case. Why do you have to use blockchain for your project. This is not a good use of blockchain.
in the first stage, tokens only serve as a payment and reward mechanism. this is how we start building a user-generated fitness data ecosystem. in further stages, users can get micro-payments for sharing their accumulated data, companies that want to have a simple and powerful proof that a user gave access to their data, can store permissions on blockchain (data protection rules are tightening around the world, particularly in Europe with new data protection regulations in place from spring 2018. a user has to give an active consent for any of his personal data to be used by further providers) , intermediaries can offer new ways for users who are active and health to interact with data end users, health insurances can use the reward mechanism, companies can incentivize their employees, further healthy products and services can be bouth. and token functions as a utility token of this ecosystem.
btw, i checked out C. lots to think about. good initiative.
