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# zoneGroupsByType

A property that contains a dictionary that maps quantity types to their zone groups for this workout.

```
var zoneGroupsByType: [HKQuantityType : HKWorkoutZoneGroup]? { get }
```

## Discussion

This property provides zone data for the workout’s primary activity, covering the full workout duration. Access zone groups for individual activities using [`zoneGroupsByType`](/documentation/HealthKit/HKWorkoutActivity/zoneGroupsByType).

---

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