Apple Details How Apple Watch Accelerometer-Based Sleep Apnea Feature Works
Apple has recently published a clinical validation summary document that provides insight into its innovative approach to detecting sleep apnea using the Apple Watch's built-in accelerometer. This feature, which is part of Apple Watch Series 10 and available on Apple Watch Ultra 2 and Apple Watch Series 9 with watchOS 11, has the potential to revolutionize the way we monitor and manage sleep disorders. The Science Behind the Feature The Apple Watch uses its triaxial accelerometer signals to track movement, including coarse motion of the body as well as fine movements associated with breathing. An algorithm developed by Apple uses this data to classify breathing disturbances that occur during sleep tracking, which are temporary interruptions in the breathing pattern. This approach is validated by comparing it to traditional methods of identifying disruptions to breathing, such as abdomen belts and airflow meters. How the Feature Works The Sleep Apnea Notification Feature consists of...