Apple’s new ResearchKit API monitors Parkinson’s disease symptoms on Apple Watch
The new API will provide app developers using ResearchKit the ability to offer passive, all-day monitoring via an Apple Watch running watchOS 5.
To achieve this the API will monitor two very common symptoms of Parkinson’s including Tremors, indicated by shaking and quivering detected by the Apple Watch, and Dyskinesia, a side-effect of treatments for Parkinson’s that causes fidgeting and swaying motions in patients.
9to5Mac
https://9to5mac.com/2018/06/06/apple-watch-researchkit-parkinsons-movement-disorder-api/