---
title: HKWorkoutEffortRelationship
framework: healthkit
role: symbol
role_heading: Class
path: healthkit/hkworkouteffortrelationship
---

# HKWorkoutEffortRelationship

## Declaration

```swift
class HKWorkoutEffortRelationship
```

## Topics

### Initializers

- [init(coder:)](healthkit/hkworkouteffortrelationship/init(coder:).md)

### Instance Properties

- [activity](healthkit/hkworkouteffortrelationship/activity.md)
- [samples](healthkit/hkworkouteffortrelationship/samples.md)
- [workout](healthkit/hkworkouteffortrelationship/workout.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Series queries

- [HKQuantitySeriesSampleQueryDescriptor](healthkit/hkquantityseriessamplequerydescriptor.md)
- [HKQuantitySeriesSampleQuery](healthkit/hkquantityseriessamplequery.md)
- [HKWorkoutRouteQueryDescriptor](healthkit/hkworkoutroutequerydescriptor.md)
- [HKWorkoutRouteQuery](healthkit/hkworkoutroutequery.md)
- [HKHeartbeatSeriesQueryDescriptor](healthkit/hkheartbeatseriesquerydescriptor.md)
- [HKHeartbeatSeriesQuery](healthkit/hkheartbeatseriesquery.md)
- [HKElectrocardiogramQueryDescriptor](healthkit/hkelectrocardiogramquerydescriptor.md)
- [HKElectrocardiogramQuery](healthkit/hkelectrocardiogramquery.md)
- [HKWorkoutEffortRelationshipQuery](healthkit/hkworkouteffortrelationshipquery.md)