Normalized Stress Index

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

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

Swift

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

Objective-C

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