I'm looking to hire someone to help me understand how to properly track and display workout data with HKWorkout in objective-C. I'm a new iOS Developer and I'd like to better understand how the data is retrieved from the HealthStore. Currently I have access to the healthStore and can view and save basic data like weight, I also can save a workout with predetermined duration, calories burned and distances. I'm having trouble figuring out how to track a workout and calculate the data using apple's HealthKit. Would you be able to assist?