Re-emergent tremor in Parkinson’s disease: Clinical and accelerometric properties

Re‐emergent tremor in Parkinson's disease: the effect of dopaminergic treatment

“…The absence of neurophysiological tools might, consequently, also have limited the accuracy of the RET latency measurement. The latency of RET reported in this study is, however, similar to that reported in previous neurophysiological investigations [1,3,24].…”

“…RET differs from the postural tremor that is present in PD while a posture is maintained . As both the frequency and muscle contraction pattern are similar in RET and resting tremor, it has been suggested that RET is a variant of resting tremor .…”

A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease

“…A spectrum of accelerometers have been developed [7]. Additional methods of analysis include parametric [47] and non-parametric procedures [16], short time Fourier transforms, power spectral density analysis, peak detection nethods, and pattern recognition [48]. Gravitational artifacts may occur with a vertical hand when the device is mounted near the wrist [49].…”

Quantification of tremor using consumer product accelerometry is feasible in patients with essential tremor and Parkinson’s disease: a comparative study

“…Objective quantification of tremor can be done with accelerometers, which measure dynamic and static accelerations. These measurements are generally done for both resting and action tremors separately, and provide frequency and amplitude of the tremor [1,21]. While the frequency can be used to discriminate between different types of tremor, the amplitude is mainly used to classify disease and to follow disease progression [10,11].…”