Tremor Pro

This app is used to monitor pathologic tremors, which are usually caused by neurological disorders, e.g. Parkinson diseases.

Three kinds of tremors are measured, including rest, postural and kinetic tremors. With a smart phone attached to the palm, the user sits on a chair and follows the instructions given by the app to perform the three tasks one by one. Rest tremor is evaluated for 30 seconds while the user’s hands remains still resting on his or her thighs. Postural tremor is evaluated for 20 seconds with arms extended against gravity in front of the body. Kinetic tremor is evaluated for 20 seconds where the user repeatedly extends his or her arm from thigh and touches the nose with the index finger. Each task will be graded with points raging [0, 4] (0 is fine and 4 is the most severe) based on the analysis of the collected data. The user can also compare the historic data to check if the disease is improved or worse.

Disclaimer: though the model used in the app is calibrated by real patients with Parkinson Disease, this app is not for medical usage, only for your reference. If there is any issue raised, then, the author will take no responsibility.

Special thanks to Hong Kong Parkinson's Disease Association.