HealthKit to detect that a person is in trouble

I would like to leverage ios's HealthKit to write a watch and phone app that would detect that its user may be in trouble (fall/shock).

I do not want to gather the various sensor data myself because it would not work if the app is closed or the phone restarted. I see HeathKit as a mean of access to the store always available.

Today I have an android app working with a service (always running) that uses the accelerometer/GPS and bluetooth to achieve the same goal and triggers the app to connfirm the problem.

Am I going in the right direction? It seems that the accelerator data is not available in the HealthKit.

Do you think App Review would approve such an app?

HealthKit to detect that a person is in trouble
 
 
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