The Digital Jar Open assessment measures the functional range of motion without pain for the joints of the arm (wrist, elbow, shoulder) on each arm while rotating inward and outward. Data collected from this assessment includes x,y,z accelerometer readings (at ~100Hz) and rotation rates from the gyroscope as well as the overall degrees of rotation in each direction for each arm.
- A validation study is in progress in the context of psoriatic arthritis.
Example studies that have used the test
- Psorcast (in progress)