Tremor Frequency Assessment by iPhone® Applications: Correlation with EMG Analysis

• Type: Article in International Scientific Journal
• Date: 2016-01-01

Authors

Rui Araújo (Author) FMUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: Journal of Parkinson's Disease

Vol. 6

Pages: 717-721

ISSN: 1877-7171

Indexing

Scopus - 6 Citations

Other information

Authenticus ID: P-00M-6X8

DOI: 10.3233/jpd-160936

Abstract (EN): Tremor frequency analysis is usually performed by EMG studies but accelerometers are progressively being more used. The iPhone® contains an accelerometer and many applications claim to be capable of measuring tremor frequency. We tested three applications in twenty-two patients with a diagnosis of PD, ET and Holmes' tremor. EMG needle assessment as well as accelerometry was performed at the same time. There was very strong correlation (Pearson >0.8, p<0.001) between the three applications, the EMG needle and the accelerometry. Our data suggests the apps LiftPulse®, iSeismometer® and Studymytremor® are a reliable alternative to the EMG for tremor frequency assessment.

Language: English

Type (Professor's evaluation): Scientific