Global Variable

HKQuantityTypeIdentifierVO2Max

A quantity sample that measures the maximal oxygen consumption during incremental exercise.

Declaration

const HKQuantityTypeIdentifier HKQuantityTypeIdentifierVO2Max;

Discussion

VO2max is often used as an indicator of health.

These samples use volume/(mass * time) units (described in HKUnit), measured in ml/(kg * min). They measure discrete values (described in HKStatisticsQuery).

Topics

Metadata Keys

HKMetadataKeyVO2MaxTestType

The method used to calculate the user’s VO2 max rate.

See Also

Vital Signs

HKQuantityTypeIdentifierHeartRate

A quantity sample type that measures the user’s heart rate.

HKCategoryTypeIdentifierLowHeartRateEvent

A category sample type for low heart rate events.

HKCategoryTypeIdentifierHighHeartRateEvent

A category sample type for high heart rate events.

HKCategoryTypeIdentifierIrregularHeartRhythmEvent

A category sample type for irregular heart rhythm events.

HKQuantityTypeIdentifierRestingHeartRate

A quantity sample type that measures the user’s resting heart rate.

HKQuantityTypeIdentifierHeartRateVariabilitySDNN

A quantity sample type that measures the standard deviation of heartbeat intervals.

HKQuantityTypeIdentifierWalkingHeartRateAverage

A quantity sample type that measures the user’s heart rate while walking.

HKDataTypeIdentifierHeartbeatSeries

A series sample containing heartbeat data.

HKQuantityTypeIdentifierOxygenSaturation

A quantity sample type that measures the user’s oxygen saturation.

HKQuantityTypeIdentifierBodyTemperature

A quantity sample type that measures the user’s body temperature.

HKCorrelationTypeIdentifierBloodPressure

Blood pressure correlation types combine a systolic sample and a diastolic sample into a single blood pressure reading.

HKQuantityTypeIdentifierBloodPressureSystolic

A quantity sample type that measures the user’s systolic blood pressure.

HKQuantityTypeIdentifierBloodPressureDiastolic

A quantity sample type that measures the user’s diastolic blood pressure.

HKQuantityTypeIdentifierRespiratoryRate

A quantity sample type that measures the user’s respiratory rate.