How to access and use the key metrics for custom applications ?

[Windows Central Question]

I would like to use the data/kpis from Band like
1. For Run -->Duration, calories burnt, recovery time etc.,
2.For Bike-->Average Speed,Top Speed etc.,
3.For Sleep-->Light Sleep, Restful Sleep

Almost everything I see in my band , but to my own usage.
I see everything syncing to Microsoft Health, but can I get those details automatically so that I can include and analyze on my own customized application ?
I could get all sensor information but the above metrics seems difficult.

Any pointers?