I would like to collect high-frequency heart rate data during relatively short sessions as part of a medical app. For example, the user could be asked to walk around or perform other specific movements for a short time period, and I would like to correlate heart rate data to that activity.
I understand how to implement this — create Apple Watch app and run a HealthKit workout session for the duration of the activity, so that the watch can sample heart rate data at the highest frequency. Ideally, the app would delete the workout session from HealthKit after it has retrieved the heart rate data, so that it doesn't pollute the user's workout data.
My concern is that the app may get rejected in App Store review? Would Apple consider this an abuse/misuse of HealthKit/workouts?