PMC5623759_01
Video of the OT Patient. On examination, the patient experienced a variable tremor at rest of the left hand and bilateral action tremor. When standing she reported unsteadiness and a subtle symmetrical tremor in both legs was observed. This tremor decreased when the patient was walking, and even more so when running.
.jpg
PMC5623759_01_.jpg
v01
Tremor recordings were collected using an iOS application (iSeismometer, ObjectGraph LLC) using an Apple iPhone 5 (Cupertino, CA, USA) inserted into the patient's sock (Figure 1). Fast Fourier transform analyzing 1,024 samples detected a tremor with a frequency of 16.4 Hz on both legs (Figure 1).