Global Variable

HKQuantityTypeIdentifierElectrodermalActivity

A quantity sample type that measures electrodermal activity.

Declaration

const HKQuantityTypeIdentifier HKQuantityTypeIdentifierElectrodermalActivity;

Discussion

Electrodermal activity measures the conductance of the user’s skin. This conductance increases as the activity of the sweat glands increases. These samples use conductance units (described in HKUnit) and measure discrete values (described in HKStatisticsQuery).

See Also

Lab and Test Results

HKQuantityTypeIdentifierBloodAlcoholContent

A quantity sample type that measures the user’s blood alcohol content.

HKQuantityTypeIdentifierBloodGlucose

A quantity sample type that measures the user’s blood glucose level.

HKQuantityTypeIdentifierForcedExpiratoryVolume1

A quantity sample type that measures the amount of air that can be forcibly exhaled from the lungs during the first second of a forced exhalation.

HKQuantityTypeIdentifierForcedVitalCapacity

A quantity sample type that measures the amount of air that can be forcibly exhaled from the lungs after taking the deepest breath possible.

HKQuantityTypeIdentifierInhalerUsage

A quantity sample type that measures the number of puffs the user takes from their inhaler.

HKQuantityTypeIdentifierInsulinDelivery

A quantity sample that measures the amount of insulin delivered.

HKQuantityTypeIdentifierNumberOfTimesFallen

A quantity sample type that measures the number of times the user has fallen.

HKQuantityTypeIdentifierPeakExpiratoryFlowRate

A quantity sample type that measures the user’s maximum flow rate generated during a forceful exhalation.

HKQuantityTypeIdentifierPeripheralPerfusionIndex

A quantity sample type that measures the user’s peripheral perfusion index.