---
title: runningGroundContactTime
framework: healthkit
role: symbol
role_heading: Type Property
path: healthkit/hkquantitytypeidentifier/runninggroundcontacttime
---

# runningGroundContactTime

A quantity sample type that measures the amount of time the runner’s foot is in contact with the ground while running.

## Declaration

```swift
static let runningGroundContactTime: HKQuantityTypeIdentifier
```

## Discussion

Discussion These samples use time units (described in HKUnit) and measure discrete values (described in HKQuantityAggregationStyle). During outdoor running workouts, the system automatically records ground contact time on Apple Watch SE and Series 6 and later. Sample data may be condensed and/or coalesced by HealthKit. For more information, see Accessing condensed workout samples.

## See Also

### Related Documentation

- [appleWalkingSteadiness](healthkit/hkquantitytypeidentifier/applewalkingsteadiness.md)
- [appleWalkingSteadinessEvent](healthkit/hkcategorytypeidentifier/applewalkingsteadinessevent.md)
- [sixMinuteWalkTestDistance](healthkit/hkquantitytypeidentifier/sixminutewalktestdistance.md)
- [walkingSpeed](healthkit/hkquantitytypeidentifier/walkingspeed.md)
- [walkingStepLength](healthkit/hkquantitytypeidentifier/walkingsteplength.md)
- [walkingAsymmetryPercentage](healthkit/hkquantitytypeidentifier/walkingasymmetrypercentage.md)
- [walkingDoubleSupportPercentage](healthkit/hkquantitytypeidentifier/walkingdoublesupportpercentage.md)
- [stairAscentSpeed](healthkit/hkquantitytypeidentifier/stairascentspeed.md)
- [stairDescentSpeed](healthkit/hkquantitytypeidentifier/stairdescentspeed.md)

### Activity

- [stepCount](healthkit/hkquantitytypeidentifier/stepcount.md)
- [distanceWalkingRunning](healthkit/hkquantitytypeidentifier/distancewalkingrunning.md)
- [runningSpeed](healthkit/hkquantitytypeidentifier/runningspeed.md)
- [runningStrideLength](healthkit/hkquantitytypeidentifier/runningstridelength.md)
- [runningPower](healthkit/hkquantitytypeidentifier/runningpower.md)
- [runningVerticalOscillation](healthkit/hkquantitytypeidentifier/runningverticaloscillation.md)
- [distanceCycling](healthkit/hkquantitytypeidentifier/distancecycling.md)
- [pushCount](healthkit/hkquantitytypeidentifier/pushcount.md)
- [distanceWheelchair](healthkit/hkquantitytypeidentifier/distancewheelchair.md)
- [swimmingStrokeCount](healthkit/hkquantitytypeidentifier/swimmingstrokecount.md)
- [distanceSwimming](healthkit/hkquantitytypeidentifier/distanceswimming.md)
- [distanceDownhillSnowSports](healthkit/hkquantitytypeidentifier/distancedownhillsnowsports.md)
- [basalEnergyBurned](healthkit/hkquantitytypeidentifier/basalenergyburned.md)
- [activeEnergyBurned](healthkit/hkquantitytypeidentifier/activeenergyburned.md)
- [flightsClimbed](healthkit/hkquantitytypeidentifier/flightsclimbed.md)