Stress Index

The Stress Index value is sent as part of the final results.

The application can receive the Stress Index result by implementing VitalSignsListener:

Swift

func onFinalResults(results: VitalSignsResults) {
    DispatchQueue.main.async {
        if let stressIndex = results.getResult(of: VitalSignTypes.stressIndex) as? VitalSignStressIndex {
            print("Stress Index: \(stressIndex.value)")
        }
    }
}

Objective-C

- (void)onFinalResultsWithResults:(BIOVitalSignsResults *)results {
    dispatch_async(dispatch_get_main_queue(), ^{
        BIOVitalSignStressIndex *stressIndex = (BIOVitalSignStressIndex *)[results getResultOf:BIOVitalSignTypes.stressIndex];
        if (stressIndex != nil) {
            NSLog(@"Stress Index: %ld", (long)stressIndex.value);
        }
    });
}

For general information about vital signs see the Vital Signs and Health Indicators Information Document.

For a list of supported vital signs by platform and measurement mode (face/polar), along with their required measurement durations, refer to the Indicators Technical Information page.

Important

Note that vital signs are sent on a background thread. The application must switch to the UI thread in order to perform UI updates.